Experienced and professional animal trainer provide their insights in answering this question :
A. You should take him to your vets as these signs are concerning. It may be due to senile brain changes but he could have had a stroke or vestibular disease.

How to Identify Common Pet Problems ?

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

Pacing and circling in dogs can be activities in which dogs engage in order to perform some normal activities like urinating, defecating, sniffing and investigating, or they can be compulsive behaviors which are not normal. They may also be indicative of underlying pain or a neurological disease or canine dementia.
It`s no secret that as dog`s age, they are susceptible to more health problems. If your pooch is displaying concerning behaviors such as disorientation or confusion, they might be suffering from canine dementia.
Older dogs may circle out of anxiety, but more commonly, it is a sign of canine dementia. It could also be forebrain dysfunction from a stroke or vestibular disease that is affecting their balance.
How long can a dog live with dementia? On average, a dog can live for around two years after an official diagnosis. That said, it depends on the dog`s overall physical and mental health, how fast the disease progresses, and how early the signs of dementia were picked up.
Wincing, Whining or Crying

All three of these actions indicate an injury or some kind of pain your dog is experiencing. If you start to pet your dog and they shy away from your hand or whine, you know there is something wrong.

Dogs, like people, can have mental health concerns such as anxiety and stress. It`s possible that your dog is anxious if he starts trembling and acting abnormally during a fireworks show or a rainstorm.
Circling behavior in senior dogs usually occurs as a result of cognitive issues or anxiety. A trip to the veterinarian is warranted each time your senior dog exhibits uncommon behaviors, including circling frequently and repetitively. (Circling before lying down in his dog bed or favorite napping spot is normal.)
Dementia in dogs has three stages of symptoms—mild, moderate, and severe. There are typical patterns that appear within each stage. However, it`s important to note that not every dog follows these exact patterns or stages.
At what age does dog dementia start? Dog dementia begins to affect dogs around the age of 9. But, dogs as young as 8 years old may also develop the condition. And the chances of your dog developing CCD goes up as they get older.
Increased water intake can be a sign of many different conditions. Kidney failure, diabetes mellitus, and Cushing`s disease are the most common causes in senior dogs. Increased water consumption may also be seen with dehydration, however, this condition may be seen in dogs of all ages.
Human patients with cognitive impairment become easily confused and are prone to becoming lost, while a dog with dementia may pace or wander out of the yard. These circumstances account for why people and pets with dementia must not be left unattended, especially in unfamiliar places.
Dogs with canine dementia often show strange behaviors. They may become less responsive to commands, lose their house-training, or find it difficult to eat and drink. Dogs suffering from CCD also often bark more when they feel anxious. It`s vital that you`re patient with your dog through these changes.
What are the typical signs of pain in dogs? General behaviour: Shaking, flattened ears, low posture, aggression, grumpy temperament, panting or crying, excessive licking or scratching a specific area, reluctant to play, interact or exercise, lameness (limping), stiffness after rest, loss of appetite.
When dogs are in pain or don`t feel well, they tend to display behavioral changes, such as decreased activity or lethargy. Some sick dogs that are normally social may start to withdraw. A kind and energetic pet may begin to show snippiness or aggression.
Dogs may walk around aimlessly because they are less aware of their surroundings, unwell, painful, or feel stressed. However, boredom can also cause them to walk around aimlessly, so check whether this could be the cause before contacting your veterinarian.
Dogs with dementia may suddenly bark, howl, or whine for no apparent reason. Separation Anxiety. Some dogs become less interested in spending time with family members, while others can`t bear to be away from you for a minute.
Clinical signs of poisoning in a dog may include: Gastrointestinal signs: vomiting, diarrhea, extreme salivation, loss of appetite, and nausea or dry heaving. Internal bleeding: indicated by pale gums, a racing heart, coughing up or vomiting blood, weakness or lethargy, or a dog`s falling over or collapsing.
The last few days before your dog passes you may notice: extreme weight loss, a distant look in their eyes, a lack of interest in anything, restlessness or unusual stillness, a change in the way that your dog smells, and a changed temperament.
Some signs of a stroke in dogs include a head tilt, circling, loss of balance, and unusual eye movements. If you think that your dog is having a stroke, don`t delay getting them to the vet for diagnosis and treatment. Treatment is mostly supportive, and it`s important to treat any underlying causes.
This could be caused by a variety of factors, including illness, injury, or exposure to toxins. In some cases, animals may exhibit this behavior as a result of a neurological disorder or other underlying medical condition.
So, if your dog`s circling behavior stems from a place of happiness and getting comfy, chances are your dog`s actions are normal and they`re just a goofball! But, if your dog appears to be in any distress, or suddenly begins to circle out of nowhere, there could be some health issues at play.
The signs are insidious and progressive. Early in the disease signs are subtle and may come and go, but as the disease progresses the signs become more apparent. The pet has `good days` and `bad days` but gradually worsens.
There is no definitive test for dementia in dogs. It`s diagnosed by looking for behaviour changes and ruling out other medical reasons for these changes.
Your veterinarian may suggest the prescription medication selegilene (Anipryl). Selegiline works to protect nerve cells and enhances dopamine in the brain. Some owners may notice improvement in three weeks or less, but many dogs can take six weeks before showing changes.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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 dog doesn’t seem to be drinking, what should I do?
ANSWER : A. If it has been this way for a long time and your dog seems otherwise healthy (eating, active), he/she may be getting water from other sources, such as wet food, outside, or the toilet. I would try to identify other sources they could be getting it from first. If the dog is truly not drinking or not getting moisture from wet food or other sources, he/she may need to be examined by a veterinarian.
It is more concerning if a dog suddenly stops drinking, especially if he/she also stops eating. This can be a starting sign of almost any illness and definitely warrants veterinary attention. If the dog is still drinking some, and still eating and active, there may be a less serious reason for the change. For instance, cooler temperatures, food changes, and decreased activity can cause decreased water intake.

Q. My dog doesn’t eat, what should I do?
ANSWER : A. If this is a puppy, see a veterinarian immediately. Puppies should want to eat. Common causes for anorexia in puppies include viruses (parvo is a big one), parasitism, and foreign bodies. They need immediate care – go to an emergency vet if yours isn’t open. Puppies can get low blood sugar and dehydration very quickly.

If this is an adult dog and you observe other concerning signs, such as diarrhea or decreased energy, you should see a veterinarian.

If the dog seems otherwise bright and stable, try offering different types of food: wet food, canned tripe, or cooked chicken and rice. Some dogs will go for canned baby food: chicken, turkey, or beef as the main ingredient. Make sure there are no garlic or onions in the ingredients!

Causes of anorexia in adult dogs can range from less serious to severe. Younger dogs are more likely to get into trouble- they tend to eat things they shouldn’t, and can get foreign bodies from eating things like socks, or stomach upset from getting in the trash. Any dog may stop eating due to stress, or just being a picky eater. Middle aged dogs can stop eating when they’re stressed and also have Addison’s disease, which can be fatal. Older dogs tend to stop eating when they develop cancer or renal disease.

There is no one-size-fits-all recipe to know when the right time is to take your dog to the vet. The moral of this story is, if it’s not getting better, your pup feels bad, or you’re worried – go see the vet!

Read Full Q/A … : My Dog Won’t Eat

Q. My pom is confused and going around in cirles he is still eating and drinking water age 12
ANSWER : A. You should take him to your vets as these signs are concerning. It may be due to senile brain changes but he could have had a stroke or vestibular disease.

Q. Why does my dog eat grass?
ANSWER : A. As another user mentioned, dogs can eat grass when they want to vomit. Sometimes, when a dog has an upset tummy, they will eat grass. If you notice your dog eating grass frantically, you can assume vomiting will shortly follow. Grass does not digest and pass normally. If your dog eats too much grass, it can cause serious issues with pooping. Your dogs poop can end up all tangled inside of her, and it can need veterinary assistance to remove it. The same goes for celery, so avoid feeding celery to your dog.

The other day my boyfriend accidentally left the laundry room door open where we were keeping the trash that was filled with cooked chicken bones. She ate one of the chicken bones lightning fast. We had to induce vomiting by feeding her some hydrogen peroxide. After we had fed her the peroxide, she immediately began frantically eating grass because her tummy was upset.

If there is something lacking in your dogs diet, it could be that your dog is eating grass to make up for it. I am sure that my dogs diet is extremely well balanced (I do not only feed her an air-dried raw food-type diet (Ziwipeak), but a wide variety of safe, healthy foods), so when she eats grass, I know that it is because she has an upset tummy.

That is why I think it is important making sure your dog has a very well balanced diet. If your dog is on a low quality kibble, your dog may be trying to let you know by eating grass (or eating poop).

Q. My dog hasnt eaten snce I left 4 days ago. I won’t be home for 6 more days. How can the caretaker get her to eat?
ANSWER : A. If your dog is feeling a bit sad while you are away and is refusing to eat, your pet sitter may try some things such as adding in boiled chicken or turkey to meals to encourage eating. A pet-safe gravy may also entice your dog to eat as well while you are gone. Your pet sitter may also want to offer smaller meals more often throughout the day to give your dog more chances to try and eat when she is feeling more comfortable and a little less sad. A game of fetch or playing together may also get your dog’s appetite going and help her to feel more comfortable eating around your pet sitter.

If your dog is showing any other signs of illness in addition to the refusal to eat (beyond normal missing an owner), then it is always a good idea to keep an eye out and contact a veterinarian as needed.

Read Full Q/A … : ufdc.ufl.edu

Q. My dog just puked on the tile and layer around. He then proceeded to get up and drink 4 bowls of water. Why did he drink so much water?
ANSWER : A. He was feeling thirsty because he has lost lots of fluids with the vomit and his body was telling him to increase the water intake. It’s normally a good idea to start offering small amounts of water little and often, otherways if the stomach is still upset, too much water can cause the vomiting to occurr again.

Read Full Q/A … : Vetinfo

Q. Husband shamed dog for having an accident inside, and now she won’t poop when he takes her out. Can we fix this? He realizes he erred
ANSWER : A. Good on your husband for realizing that scolding is not the way to potty train! Hopefully these tips can help both him and your pup get back on the right track and make pottying outside successful.

If your dog is still a puppy, that is good news as you may be able to more easily time your potty outings with your dog’s schedule. Even if your dog is older, this schedule may help. Dogs generally have to go potty about 15 minutes after eating, drinking, waking up or playing. Knowing this, get your husband to start taking out your puppy at these key times, so puppy gets used to going out with him, and the urge to potty may be higher than any fear to go. If the potty is successful, have your husband reward the dog with a favorite treat! For bowel movements, dogs may take a little more time, and you may have to stand outside for a while (sometimes even 10 minutes) to give your dog a chance to go. If she doesn’t go, take her back inside and play some, then try again in about 15 minutes. Again, a success equals a treat which most dogs will like right away!

For any indoor potty accidents that occurred, an enzymatic cleaner is great for cleaning up urine and stool. Not only does it remove the stain and smell, but it breaks down the enzymes in the urine and stool your dog can smell, which may deter her from going potty there again.