Addiction is a chronic brain disease that induces compulsive activity, despite health, social and legal consequences. A person may seem to make a voluntary choice to try a drug or begin a type of behavior, but a variety of genetic and environmental factors influence those decisions.
Expert: Theresa replied 8 years ago. Symptoms of a dying dog include, lack of appetite, pale, blue, or gray gums, dry gums, inability to stand, dilated pupils, difficulty breathing, unresponsiveness, and neurologic symptoms. A dog can live for a couple weeks without enough food and water.
Depression: Not all dogs will act depressed when they are sick. Loss of appetite: Some dogs will miss a meal at times, and you should be aware if you have the type of dog that misses meals. Vomiting and diarrhea: If your dog is healthy, one simple episode of vomitingis not too much to worry about.