Experienced and professional animal trainer provide their insights in answering this question :
A. If it was my cat I would. Cats are really good at hiding illness and a cat that isn’t eating is definitely a sign that it is not feeling well. If nothing, it’ll give you a peace of mind.

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

Clean out and provide fresh water in water bowls every day. Provide multiple clean water sources around your house for the cat to drink from. Try giving your cat an electrolyte supplement or meat-flavored water from a trusted pet food store. Use a cat water fountain with fresh water to encourage them to drink.
If your cat is still eating, you can increase her liquid intake by feeding canned food and/or adding water to her food. In some cases you may be able to give her water with an oral syringe or a squirt bottle, but this should be done carefully.
Lethargic and Not Eating / Drinking—Like lethargy, not eating or drinking well are nonspecific clinical signs that are seen with many cat diseases. Lethargic and Losing Weight—A poor appetite can lead to weight loss, but so can diseases like hyperthyroidism or diabetes, even if your cat is eating well.
In order to recover, your sick cat needs to have both food and water. When cats are ill they will often stop eating and drinking, therefore, it is important to monitor your cat`s food and water intake so that you know when intervention is necessary.
Yet they still need water and can`t survive longer than two or three days without access to it. “Once about 24 hours pass without water, dehydration sets in,” she says. “The longer this goes on, the more stress and strain is placed on their internal organs, leading eventually to failure and death.”
Reduced appetite. Lethargy. Decreased interest in positive things like playing, social interaction and exploring outside. Being withdrawn and hiding away.
Lethargic and Not Eating / Drinking – Like lethargy, not eating or drinking well are nonspecific clinical signs that are seen with many cat diseases. Lethargic and Losing Significant Weight – A poor appetite can lead to weight loss, but so can diseases like hyperthyroidism or diabetes, even if your cat is eating well.
Allow your cat to rest quietly without being disturbed by people or other pets. Offer your cat some extra tasty or strong smelling canned foods (e.g., tuna or salmon), to entice him/her to eat more.
Sick cats often lie quietly in a hunched position. They might neglect grooming. They may be purring, which cats do not only when they`re happy, but also when they`re sick or in pain.
Cats that are ill will usually show changes in overall appearance, energy level, sociability, coat appearance and/or amount of shedding, appetite, litterbox usage, breathing, or discharges from the eyes or nose. In general, any sudden change should alert you that your cat needs veterinary attention.
Loss of appetite is one of the key clues that something is wrong. So be sure to pay attention if your cat suddenly stops eating. A number of different conditions may be responsible, including infections, kidney failure, pancreatitis, intestinal problems, and cancer.
Some cats will develop a food aversion, most commonly after an illness or hospital stay. Such cats associate a particular food with feeling sick or with the stress of hospitalization, and then refuse to eat that food.
If there`s an obvious reason for your cat skipping a meal there most likely isn`t anything seriously wrong. That being said, if it`s been more than 24 hours since your cat has eaten or had any water, or they are exhibiting any other symptoms besides lack of appetite, it`s time for the emergency vet.
Dehydrated cats will continue to urinate, as the body has to get rid of waste products.
How long can cats go without water? No more than 24 hours, says Tarina L. Anthony, DVM, owner and medical director of Aurora Cat Hospital and Hotel in Aurora, Colo.
Symptoms of end stage kidney failure in cats include dull sunken eyes, inability to walk, body odour, incontinence in bladder or bowels, refusal to eat or drink, seizures, confusion, pacing and restlessness, withdrawing, hiding and running away.
Heat/ice, laser therapy, chiropractics, physical therapy, massage, and acupuncture can also be very helpful in treating cat pain. In many cases, these services may even be provided in your own home. There are also many ways to modify your home and your cat`s space to better accommodate them.
If your cat dies at home

Death is not pleasant and decomposition begins quickly, so you will need to wrap your cats body. Use a blanket or towel and if you have some place some puppy pads under the body – you can also use plastic if you do not have any.

The truth is, cats understand affection just like any other animal, and domestic cats might actually see us as their real-life mommies and daddies. A 2019 study revealed that kittens evince the same behavior towards us as they do their biological parents.
Dehydration can lead to organ failure, seizures, and in the worst cases, death. If your cat has been losing fluids through vomiting or diarrhea and they`re unable to hold down liquids, or if they seem to be distressed, seek urgent veterinary care through your regular veterinarian or an emergency vet clinic.
If your cat sleeps on your bed, he may choose a position that lets him see out your bedroom door more easily. If he`s curled up in a ball under your bed or in a quiet corner, then he may be hiding. Cats who sleep under the covers might love being close to you, or they might be hiding to feel safer.
Frequent Meowing

Your cat can`t tell you where it hurts but can communicate with you by vocalizing. If your pet meows more often than normal, pain may be the reason. Cats in pain may also hiss or growl, particularly if you happen to touch a painful area. Purring doesn`t always mean that your cat is happy.

Stress by itself was enough to make otherwise healthy cats vomit, bring up hairballs, urinate or defecate outside of the litter box, urinate or defecate less frequently than normal, have poor appetites, have reduced activity levels, be lethargic, and avoid social interactions.
Kidney disease causes waste products to build up in your pet`s body. Cats affected by the disease may lose weight, urinate and drink more than usual, and become lethargic. High blood pressure can also occur as a result of kidney disease or failure. Cats that experience stress may eat less and soon begin losing weight.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. Why do cats meow?
ANSWER : A. Cat parents often wish they could better understand what their favorite feline friends want or desire. A cat’s meow can be interpreted in many different ways and can indicate an array of feelings and needs. Here are some of the most common reasons for your cat’s vocalizations:

1. Greeting- Many cats will meow as a greeting when you enter your home or walk into a room. Cats will also meow at another cat or animal in the household to extend a hello and acknowledge the other animal’s presence.

2. Attention – An exuberant meow followed by leg rubbing or another attention seeking behavior may indicate your cat is looking for some quality time spent together. Some petting or rubbing behind the ears may be in order.

3. Hunger – A meowing cat is often a hungry cat. This is one of the most common reasons for a cat to vocalize to their owners. A cat will meow to get your attention at feeding times or even when they want extra food.

4. Sickness – A sick or hurt cat may begin to meow excessively, warranting a visit to the veterinarian. There are numerous reasons for a cat in distress to meow—whether it is related to an upset stomach, an injured leg or a urinary blockage. These meows should be carefully investigated.

5. Entering or leaving – Most cats will vocalize when they want to be let in or out of a room. You may notice when you are in the bathroom or behind the closed door of a room that your cat begins to meow, scratches at the door, and often reaches its paw under the door. This is a clear indication that the cat wants to be where you are.

6. Angry – An agitated cat may meow to warn their owner or another household pet that they are upset and would like to be left alone. This angry meow may increase in sound volume as the cat becomes more stressed or agitated. Often a cat will exhibit this type of meow at the veterinary office when they are unhappy with their examination or restraint.

Each feline is different and so are their vocalizations. Learn to understand the variety of meows your cat uses on a daily basis. This will help you develop a better relationship with your cat and help them live a more trusting and happier life.

Q. My cat continues to scratch on furniture and carpets. He has plenty of scratching posts around the house. Please help!
ANSWER : A. Scratching is a natural behavior in cats that can be frequently frustrating for pet owners who want to keep their furniture from being shredded on a constant basis. The texture of furniture and carpet is very appealing to cats and this why they frequently choose to spend their time on this activity as opposed to playing with their own cat toys. Here are some suggestions to help curb this unwanted behavior:

1. Purchase a cat scratching post or cat tree that is covered in carpeted or textured material. Place it in an appealing spot that your cat would be inclined to spend time (eg. in the sun). You can also place catnip on the scratching post or cat tree to make your cat even more interested in the new object.

2. You can utilize double sided tape on the ends of the furniture because you cat will not like the sticky feeling and will learn to not scratch in that region. Use the tape that has a lighter adhesive in order to prevent any permanent damage. Other materials, such as aluminum foil or bubble wrap can also be placed on the furniture to discourage the scratching.

3. Keep nails trimmed short by either learning to do this on your own at home or using a veterinary technician, or groomer. Nails can usually be trimmed every 6-8 weeks.

4. Redirect the unwanted behavior. If your cat begins scratching, use a favorite or new toy to distract the cat from the scratching. Give your cat positive praise for not scratching.

5. As a last resort you can use a spray bottle full of water to spritz your cat when he or she is scratching inappropriately at your furniture. Generally, cats do not like water and this will discourage them from continuing the behavior.

Have patience with your cat because it can takes time to understand this is an unwanted behavior and that furniture is not another toy for them to use. You can always consult your veterinary or veterinary behaviorist to help with ideas or further solutions to this problem.

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Q. My dog drinks a lot of water, should I worry?
ANSWER : A. Firstly, you should quantify if your dog is actually drinking an excessive amount of water. In a 24 hour period, a dog should drink about 1 fluid ounce (or 30mL) per pound of body weight. Therefore, the recommended amount of water intake (in fluid ounces) equals your dog’s weight (in pounds). For example, if your dog weighs 8 pounds, he/she should drink about a cup of water in a 1 hour period. This will be slightly increased if your dog gets a lot of physical activity or lives outdoors.

You can measure your dog’s water intake the following way: in the morning, measure a specific amount, a little bit more than you think he/she will drink. 24 hours later, measure the remaining amount. If the amount of water your dog drank is significantly greater than it should be, then you should take your dog to a veterinarian.

Causes for mildly increased water consumption include: food changes, increased ambient and body temperature, increased activity, urinary tract infection, and general illness.

Common causes for greatly increased water consumption include: diabetes, urinary tract infection, kidney disease, steroid use, and other systemic diseases. With large increases in water consumption, you will also usually see increased urination. Please take note of urinary patterns to discuss with your vet. Greatly increased drinking and urination is ALWAYS a reason to see a vet.

Q. My cat is acting lethargic and has not eaten or drank any water (that I observed) in 12 hours, should I bring him to the vet ER?
ANSWER : A. If it was my cat I would. Cats are really good at hiding illness and a cat that isn’t eating is definitely a sign that it is not feeling well. If nothing, it’ll give you a peace of mind.

Q. I have a cat that defecates in the litter box but always urinates outside the box. It is very annoying.
ANSWER : A. Inappropriate elimination in cats is often a behavioral problem rather than a medical problem, so the first step is to have him seen by your vet to eliminate any kind of illness or condition as a cause for his eliminating outside the box.

If medical issues are ruled out, take a look at other reasons. Has there been a lot of unusual activity? Has you cat been left at home or boarded? Is the litterbox in a busy area? Has anything happened recently in this area to make him reluctant to use it again? Is there another cat, pet or person that is preventing him from getting to the box? Have you changed it from a hooded to an open box, or vice versa? Is it big enough? Have you changed the type or brand of litter? Is there something attractive about the spot he uses? Cats dislike disturbances to their routine and may act out to express their dissatisfaction.

The general rule is one litter box per cat in the household, plus one. That way each cat can have a place of their own to go in case the box is occupied or another cat has claimed it as territory. They should be scooped daily, if not more often and changed completely weekly, washed with soap and water only. You can offer one kind of litter in one box and another kind in another to see if there is a preference. I don’t recommend the crystals, it makes a hissing sound when wet that startles some cats and make them reluctant to use it again. The litter boxes should be located in a quiet, low-traffic area so that the cat can use them in peace. Make sure any other pets or people aren’t giving them a hard time around or in the litter box. It may take some investigation and experimentation to find your cat’s preference and accommodate him so that everyone is satisfied with the situation. And, when cleaning up pet accidents, don’t use any cleaner containing ammonia. This leaves behind a scent similar to urine.

Q. Our cat of six years has on two separate occasions has defecated on the living room rug and recently pee’d on the skirt of the Christmas tree.
ANSWER : A. Inappropriate elimination in cats is often a behavioral problem rather than a medical problem, so the first step is to have him seen by your vet to eliminate any kind of illness or condition as a cause for his eliminating outside the box.

If medical issues are ruled out, take a look at other reasons. Has there been a lot of unusual activity? Has you cat been left at home or boarded? Is the litterbox in a busy area? Has anything happened recently in this area to make him reluctant to use it again? Is there another cat, pet or person that is preventing him from getting to the box? Have you changed it from a hooded to an open box, or vice versa? Is it big enough? Have you changed the type or brand of litter? Is there something attractive about the spot he uses? Cats dislike disturbances to their routine and may act out to express their dissatisfaction.

The general rule is one litter box per cat in the household, plus one. That way each cat can have a place of their own to go in case the box is occupied or another cat has claimed it as territory. They should be scooped daily, if not more often and changed completely weekly, washed with soap and water only. You can offer one kind of litter in one box and another kind in another to see if there is a preference. I don’t recommend the crystals, it makes a hissing sound when wet that startles some cats and make them reluctant to use it again. The litter boxes should be located in a quiet, low-traffic area so that the cat can use them in peace. Make sure any other pets or people aren’t giving them a hard time around or in the litter box. It may take some investigation and experimentation to find your cat’s preference and accommodate him so that everyone is satisfied with the situation. And, when cleaning up pet accidents, don’t use any cleaner containing ammonia. This leaves behind a scent similar to urine.

Q. My cat started to pee outside the litter box. What should I do?
ANSWER : A. Inappropriate bathroom use in cats is often a behavioral problem rather than a medical problem, so the first step is to have him seen by your vet to eliminate any kind of illness or condition as a cause for his defecating outside the box.

Once medical issues are ruled out, it’s time to take a look at other explanations. Has there been a lot of activity that wasn’t normal? Were you away and your cat was left at home or boarded? Is the litterbox located in a busy area? Has anything happened recently in this area to make him reluctant to use it again? Is there another cat, pet, or person that is preventing him from getting to the box? Have you changed it from a hooded to an open box, or vice versa? Have you changed the brand of litter or kind? Or is there something about the spot he has chosen to use that is attracting him in some way? Cats dislike disturbances to their routine and may act out as a way of expressing their dissatisfaction.

The general rule of thumb is one litter box per cat in the household, plus one. That way each cat can have a place of their own to go in case the box is occupied or another cat has claimed it as territory. They should be scooped at least daily, if not more often and changed completely on a weekly basis, and washed with soap and water.

You can also offer one kind of litter in one box and another kind in another to see if there is a preference. I don’t recommend the crystal kind, since it makes a hissing sound when wet that can startle some cats and make them reluctant to use it again.

The litter boxes should be located in a quiet, low-traffic area so that the cat can use them in peace. Make sure other pets or people aren’t giving them a hard time around or in the litterbox. It may take some investigation and experimentation to find your cat’s preference and accommodate him so that everyone is satisfied with the situation.

Q. My cat is pooping outside of the litter bix. He is 2 1/2. He did this as a kitten. It stopped then started about 3 months ago. Litterbox is clean.
ANSWER : A. Inappropriate elimination or house soiling can be a frustrating problem but with a bit of detective work on your part, there is hope. First, before deciding that this is a behavioral issue, any medical problems (diarrhea, constipation, fecal incontinence, pain on defecation, etc.) need to be ruled out and/or treated. If your cat receives a clean bill of health from your vet but is still eliminating outside the litterbox, then we need to consider that something about the box itself might be aversive to your cat. Cats can be quite finicky about their litterbox and toileting habits. Below I have listed common recommendations and cat preferences for litterbox use. Review the list and make any changes that could account for your cat’s aversion to defecating in the litterbox:
* Soft, fine-grained clumping litter (vs, coarse-grained, non-clumping litter)
* Unscented
* 1 – 1 1/2 inch depth (especially older cats or cats with hip problems)
* Larger pans (especially for large cats) – want to get whole body inside – poop just outside the box might mean the box is too small
* Open, non-hooded
* At least one shallow side to get in and out easily
* Easy to get to – not hidden away, preferably in areas they spend time in or near – and not near appliances that make scary, unpredictable noises (washers, dryers, refrigerators)
* Scoop minimum 1X/day – preferably 2
* Clean the litterbox with soap and water and put in fresh scoopable litter at least once/month (instead of just continuously adding)
* Some cats prefer to urinate in one box and defecate in a separate box, so you may need 2 boxes even if you just have 1 cat. Multi-cat households should have 1 box/cat plus 1 extra.