I think I became lactose intolerant. My symptoms include vomiting, diarrhea, lower sever abdominal pain, back pain by kidneys, bloating, and gassy?

Lactose intolerance? Lactose breath testing (objective) or a clinical response to lactase enzyme supplements ;/or milk avoidance (subjective decline in the gassiness ; diarrhea associated with ingesting lactose) may clarify your concern. Some (particularly children) with suspected lactose intolerance however are intolerance to other milk components. Bleeding, weight loss, significant tenderness is not lactose intol.

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What is it? I have abdominal pain (worsened by: after meal) (side: upper) (quality: tearing) (severity: moderate), stomach cramps, bloating or abdominal fullness, back pain (severity: severe) (side: upper, both), diarrhea and constipation.

Gallbladder or ulcer. Symptoms are highly suggestive of gallbladder problem/disease. An ultrasound is simple, noninvasive & highly sensitive test to evaluate for gallbladder disease & recommended first test after history & exam by health care provider. An upper endoscopy aka EGD is also high yield test for looking for ulcer, gastritis, reflux but is more invasive & expensive. Read more...