With a shellfish allergy, lobster, crab, oysters, clams, scallops, abalone, shrimp, sea urchin, crayfish and mussels all are problematic. With a fish allergy, regular fish, as well as foods containing fish such as Worcestershire sauce, Caesar salad and imitation seafood, are off limits.
Symptoms of IBD. One or many of the following symptoms can be found in a cat with inflammatory bowel disease (IBD): 1  Vomiting. 2  Diarrhea. 3  Weight loss. 4  Normal/increased appetite. 5  Stomach rumbling. 6  Belching. 7  Black, tarry stools. 8  Flatulence (from digested blood). 9  Halitosis.
Thinkstock. Many things can cause a cat to become constipated: an intestinal blockage, stress, not enough exercise, not enough water, arthritis, a tumor, or something else entirely. Symptoms include straining to defecate, tiny or hard feces, and sometimes not defecating for days.ther medications, such as stool softeners, laxatives, and motility modifiers, may help, as well. If an underlying condition, such as kidney disease, may be causing dehydration and constipation, treating the problem and rehydrating the cat with fluid therapy can help.