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.
Symptoms and Types of Diarrhea in Cats. 1  More water in feces than normal. 2  May have an increased volume of feces. 3  Fecal accidents. 4  Vomiting. Blood or mucus in the feces.  Straining to 1  defecate. Possible listlessness.  Possible 1  anorexia. Depression. 2  Abdominal pain.  Fever. Weakness.