For several days: bloating, diarrhea, pain and fullness under ribs, pain that radiates to lower side, nausea, discomfort in mid to lower back. causes?

See a doctor: Diarrhea, nausea, and abdominal pain that last more than 2-3 days could be a surgical problem (gall bladder, appendicitis), a problem requiring antibiotics (diverticulitis), a reaction to a medication or a noxious agent, a viral infection. Because some of the causes are serious and you don't know what is wrong, you should see a doctor who will examine you and test you.

Bloat,diarrhea: These generalized gastrointestinal symptoms are consistent with irritable bowel syndrome, intolerance to something in your diet like gluten or lactose products, mild food poisoning or a viral intestinal tract infection. At this time I recommend avoidance of roughage in your diet and taking kaopectate or peptobismol. Have you had similar reaction to lactose or gluten in the past? See your MD as ne