I have had chronic diarrhea for over 3 years. I have no other symptoms except iron deficiency anemia (currently being treated w/ monthly transfusions). I've had all the blood, stool, urine tests, a colonoscopy, an upper endoscopy, and nothing has turned up. I'm able to stay hydrated, I eat a normal diet, and have a fairly sedentary to mildly active lifestyle (walk the dogs, housework, etc, but no regular exercise or physically demanding interests). The only medication I take is lisinopril for mild hypertension. 20 mg/day. I am minus 1 kidney due to traumatic injury (30 years ago), and I have a Lap Band for 4 years. Do I need to worry about this? 47 yr old female.