Many dogs when ill do not want to move. They have pain in moving; they may limp and refuse to exercise. All these signs indicate the injured leg or paw. These are the signs of injury or illness. Strong ear smell, discharge and shaking of the head are indicative of mites or yeast infection. Persistent coughing is a sign of kennel cough, heart worm, pneumonia or heart disease. If the dog passes blood in urine, then it may be suffering from urinary tract infection, kidney disease or internal injury. Constipation or defecating problems are indicative of intestinal blockage or a change of diet.
100-103 ° F is a normal temperature for the adult dogs, while 94-97 ° F is normal for the puppies. High temperature can be a sign of bacterial or viral infection. Bleeding gums or bad breath along with teeth loss or discolored teeth are the symptoms of periodontal disease. Increased thirst and urination frequency in dog are the symptoms of kidney disease, diabetes or liver disease. If your dog is suffering from the urinating problems, then it may possibly suffer from the kidney disease or kidney stones. Blood or worms in feces are the signs of bowel infection or parasite infestation. If your dog is ingesting grass or other vegetation or it is suffering from vomiting, then it may have the worm infestation or poisoning or gastrointestinal problems.
http://www.flixya.com/post/msnty1/908067/Sick_puppy_food