Experienced and professional animal trainer provide their insights in answering this question :
A. This sounds like a medical emergency, and he should be seen by a vet right away.

How to Identify Common Pet Problems ?

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

If you`ve noticed blood in your dog`s stool and your dog also vomiting, refusing to eat, and looking unwell, it`s time for an immediate trip to the vet. During normal business hours contact your regular vet and book an emergency appointment, after hours you should call your emergency vet.
Can My Dog Die From Pooping Blood? Yes, if the loss of blood through the digestive tract is significant, or it`s combined with significant loss of fluid through vomiting or diarrhea, it can be life-threatening. Severe dehydration and loss of blood (leading to anemia) can lead to serious consequences for your pet.
Lethargy and reduced tolerance for exercise are the early signs of congestive heart failure in dogs. As the condition worsens, other symptoms develop, including loss of appetite, coughing, and rapid breathing. Treatment depends on how far along the condition is.
Infections, illnesses, and pain can make your dog tired, listless and uninterested in food. When these symptoms continue for more than 24 hours, they could indicate the presence of a health issue that requires a visit to our veterinary hospital in Diamond Bar.
Common Signs of Dog Poisoning

The following may be signs of dog poisoning: Diarrhea or blood in the stool (either bright red blood or dark black tarry stools) Vomiting or loss of appetite.

Incontinence

Some dogs become incontinent at the end of their lives and lose control over their bladder and bowels. Others may be unable to get up to go outside to relieve themselves and may need some extra help from their owners or family members to stay clean.

Some of the signs of parvovirus include lethargy; loss of appetite; abdominal pain and bloating; fever or low body temperature (hypothermia); vomiting; and severe, often bloody, diarrhea. Persistent vomiting and diarrhea can cause rapid dehydration, and damage to the intestines and immune system can cause septic shock.
The most common causes of lethargy in dogs are: Infection, including parvovirus, distemper, kennel cough and leptospirosis. Metabolic diseases, such as heart problems, liver problems, diabetes, and hypoglycaemia. Medications, such as newly prescribed drugs or a new flea or worm product.
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.

The near-death signs of parvo include severe lethargy, continuous bloody diarrhea, anorexia, and bloody vomiting. You may not want to admit it to yourself, but this is the point of no return. So consider doing a humane thing by putting your puppy to sleep.
When sepsis does develop, signs include shaking, fever, weakness, confusion, lack of appetite, vomiting, and diarrhea. Other signs can also be present depending on the type and location of the initial infection.
Symptoms caused by swallowed poisons can include: vomiting, diarrhoea, agitation and heart issues. Inhaled toxins may cause breathing difficulties or loss of consciousness in dogs. If your dog`s skin comes in contact with a poisonous substance typical symptoms include irritation and pain.
Stress colitis is one of the leading causes of large bowel diarrhea in all dogs. Whatever the cause, the inflammation in the colon results in reduced water absorption and decreased ability to store feces in the colon. This causes the classic symptom of frequent small amounts of diarrhea, often with mucus or blood.
pale colored, very foul-smelling, floating stool.
You are probably worried that he will do just that. But don`t be: Dogs do not actually run away in order to die alone. This is an old wives` tale which confuses symptoms such as blindness and lack of orientation with the desire to die alone. Let`s look at how this myth has been perpetuated, and why it is incorrect.
The average lifespan for dogs is between 10-13 years, though there is variability among breeds and sizes.
Answer: Fortunately for us, dogs do not understand they are going to be put down and what happens after they are given the injection that puts them to sleep. I assume that dogs who are put down though feel loved or at least feel reassured by our presence if we are close to them, pet them and talk to them.
Canine influenza is a viral infection that primarily affects dogs, but can sicken cats, too. Currently, two strains have been identified in the United States: H3N8 and H3N2.
Intestinal parasites: Intestinal parasites such as roundworms, hookworms, whipworms, coccidia, and giardia can cause gastrointestinal symptoms that can mimic the parvovirus.
Symptoms of an intestinal blockage begin

Once the obstruction has occurred, clinical signs may develop such as vomiting, diarrhea, abdominal pain and loss of appetite. As soon as you notice these clinical signs, it`s time to see your veterinarian for an evaluation.

Affected dogs show signs 30 minutes to 4 hours after ingesting the poison. Initially affected dogs become anxious and have an elevated body temperature. Panting is usually seen. Progressively they become worse and staggery.
Shock Lung in Dogs. Acute Respiratory Distress Syndrome (ARDS) refers to a condition of sudden respiratory failure due to fluid accumulation and severe inflammation in the lungs. ARDS is a life-threatening problem, with current mortality rates in dogs at almost 100 percent.
The most common clinical sign of congestive heart failure (CHF) is persistent coughing accompanied by difficulty breathing. This is due mainly to pulmonary edema or the accumulation of fluid in the lungs. The enlarged heart will also push against the trachea, causing irritation that can induce a cough.
Respiratory distress happens when a person is unable to regulate gas exchange, causing them to either take in too little oxygen or expel too little carbon dioxide. Respiratory failure can follow respiratory distress, and causes more severe difficulties with gas exchange. Left untreated, it may be fatal.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. My 9 month old Maltese-Shih eats his own feces. Is there anything i can give him to get him to stop?
ANSWER : A. Coprophagia (or eating stool) is very common in young dogs. Luckily, most dogs will outgrow this behavior as they age. There are several theories as to why dogs do this which range from mimicking the mother dog’s behavior of cleaning the den, nutrient deficiency, boredom or just plain enjoyment of it.

If your dog is eating his own, removing the feces as soon as he deposits them is best in preventing them from being eaten. Keeping your dog on a leash while he potties can also help to catch any stool before he finds it. If he is eating other stool as well, sweeping the area prior to letting him out to go potty can help you identify and remove any left-behind stool.

There is also a product called For-bid that is available to make stool distasteful to pets. This product is sprinkled over every meal for a period of a week. When your dog attempts to eat the stool formed from this product, it becomes distasteful and discourages him from doing so. Most dogs will stop after a week of use, but some may need a few reminders from time to time to completely stop the behavior.

Q. My C. K. Charles has an asmathic cough. Ok most of the day, but worse in hotter rooms in the evening. What’s wrong?
ANSWER : A. Coughing in dogs can be caused by a number of things including allergies, asthma, illness such as Bordetella (kennel cough) or even lung and heart problems.

Allergies and asthma can cause a dog to have a raspy cough, and they may wheeze, sneeze or have running noses or trouble breathing when active or in an area where the allergen is present. Your vet can determine if an allergy or asthma is present and provide medication as needed to help with symptoms.

Bordetella can also cause a deep hacking cough, and is common in dogs that frequent doggy day cares, kennels or dog parks. The causes can be bacterial or viral, and treatment depends on if any secondary symptoms such as fever or dehydration is present. Treatment involves cough suppressants from your vet, or even antibiotics and fluids to treat secondary illnesses. Other illnesses such as heartworm may cause a chronic cough and exercise intolerance and should be looked for if your dog is not already on a heartworm preventive.

Small dogs are also prone to a condition called collapsing tracheas, and Cavaliers are very prone as a breed to heart and lung issues. Collapsing tracheae often cause a gasping or hacking cough when excited or active, and may require treatment if they become problematic. Heart and lung problems such as heart failure or genetic abnormalities can also cause coughing as a sign of the illness. Your vet can perform a complete exam to check the health of the lungs and heart.

Q. My new puppy is coughing a lot and I think it is Kennel Cough. Could it be?
ANSWER : A. Kennel Cough is similar to the human cold, and it can be caused by three categories of microorganisms.

1. Bordetella Bronchiseptica: A small bacteria which can result in bronchitis and severe cough in dogs.
2. Canine Adenovirus: A serious and contagious virus.
3. Canine Influenza Virus: An extremely contagious virus causing mild to severe respiratory symptoms in dogs.
Kennel Cough has its own course of 1 to 3 weeks and can be managed medically.

Close environments with several dogs can increase the chance of dogs catching the cough. Kennel Cough vaccination is aimed mostly at preventing the Bordetella infection through an inhalant or injection vaccination. Although not 100% effective, it should be recommended in all dogs that spend time around other dogs, even the park is considered one of these social occasions.

Kennels have their own policy with regards to Kennel Cough vaccinations and should always be contacted well ahead to understand and comply with their requirements before the stay of your dog.
If you suspect that your dog has caught Kennel Cough, you should see your veterinarian. Your dog might benefit from certain medications to speed up his recovery. These might include antibiotics, anti-inflammatory drugs, and cough suppressants at your vet’s discretion.

Q. He has heavy labored breathing, wont eat for 2days now and bloody stool with white stuff in it, very lethargic. 6 yrs old male Siberian Husky.
ANSWER : A. It sounds like your dog is very sick and I would recommend that you seek veterinary help for him immediately. Please call your vet and have him seen today. Labored breathing, lethargy and bloody stools can be from a number of ailments…all of which are serious and need medical attention.

Q. He is having trouble breathing, coughing at times wont eat 2days now lathargic and bloody stool with white stuff.
ANSWER : A. This sounds like a medical emergency, and he should be seen by a vet right away.

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. How can I keep my 14 year old Yorkie from snapping at the younger ones?
ANSWER : A. It’s all about management. Do not allow the 7yo’s to interact with your 14yo unsupervised. You should be there each time they interact so you can redirect the 14yo’s attention onto some toys, or onto some treats when the 7yo’s are around. It sounds like you need to help your 14yo make positive associations with being around the younger pups. You should be trying to feed him treats each time he interacts with them, and doesn’t snap at them. Pet and praise him each time he is around them, or any time they are near. As I said, keep the separated when you cannot supervise their interactions because if you aren’t around when he is snapping at them, you could end up with a fight on your hands.

It could also be that they spend too much time together. Imagine spending 100% of your time with somebody, day in and out, doing everything together… including going to the bathroom.. that might bother anybody. I think you should give them more time apart from each other. Take them all on separate walks, separate them to play with them individually, separate them when you take them to potty, separate feeding times in separate rooms, etc. This can help alleviate the stress your older dog is feeling due to living closely with other dogs. You should always be giving individual activities in a houseful of dogs anyway.. when you expect them to get along 100% of the time, that’s when you find trouble.

Q. How do you treat Bordetella?
ANSWER : A. Kennel cough is a term loosely used to describe a complex of infections—both viral and bacterial—that causes inflammation of a dog’s voice box and windpipe. It’s a form of bronchitis and is similar to a chest cold in humans. The incubation period is generally 3- 10 days. Infected dogs shed Bordetella organism for 2-3 months following infection.

Most dogs with kennel cough recover completely within three weeks, though it can take up to six weeks in older dogs or those with other medical conditions. Because serious, ongoing kennel cough infection can lead to pneumonia, be sure to follow up with your veterinarian if your dog doesn’t improve within the expected amount of time. Also, if your dog at any time has symptoms of rapid breathing, not eating, or listlessness, contact your vet right away, as these could be signs of more serious conditions. Although most cases of kennel cough will resolve without treatment, medications may speed recovery or minimize symptoms during the course of infection. These include antibiotics that target Bordetella bacteria and cough medicines.

You may also find that keeping your dog in a well-humidified area and using a harness instead of a collar, especially for dogs that strain against a leash, will minimize the coughing.