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.
In addition to the visible hair loss, the cat may display a few additional symptoms which may include: 1  Bumps on the skin, caused by allergies. 2  Skin swelling. 3  Scratching, licking and chewing. 4  Sneezing, due to inhalant allergies. 5  Melanomas on the skin. 6  Dry, flaky skin, which can be caused by allergies or a poor diet.