The upset stomach and diarrhea present immediately following meals. There doesn't seem to be any particular foods that cause this more than others.
Nothing seems to make the pain better or worse.
The patient has not traveled anywhere recently and most likely hasn't consumed any water from a contaminated water supply. Cryptosporidium doesn't seem likely. There is a family hx of colon cancer for this patient. Dear Andy, The question that you pose is very difficult to answer without additional details e.g. nature of stool, presence of nocturnal stool, urgency, incontinence, blood with stool, other illnesses, etc. The original differentaial diagnosis would focus on infectious etiologies e.g. Giardia, Cryptosporidium.