The issue here is that there any number of disorders that could be contributing to this disease. Celiac disease an autoimmune disorder fits in with this very well. Celiacs is an autoimmune disorder that affects the villi of the small intestines. Comparable to an allergy to gluten it flares up after consuming such products with it. Celiacs is a chronic disorder, that is caused by genetic predisposition, and it can come early in onset.
Celiacs disease causes a large volume of pale colored diarrhea with associated stomach cramps, bloating, and it can get bad especially after meals. Usually because ofnthe damage to the intestines nourishment becomes impaired meaning weight loss and stunted growth can happen.
Most people would have to avoid consuming gluten products, and this is for the rest of their life. However prognosis and quality of life is usually not impaired, as the small intestines does heal itself.
Body Cavities is it since it enclosed the bladder