More info please. Nausea, diarrhea, abdominal discomfort?--what are your symptoms &/or what medicine concerns you? Even "functional" syndromes may be present without underlying "disease." if pain with meals consider peptic (acid), biliary, or pancreatic disease. Bleeding or tenderness suggests inflammation, ischemia, or infection. Exquisite tenderness is quite concerning. Drug reaction should resolve on stopping rx.