I am a 72yr old senior and have had diarrhea constantly for over 2 years. I have had a chollinstpy, stool analysis and blood tests and haven't been able to discover my reason for this ailment or how to treat it. I have lost over 20 pounds in the past 2 yrs. I am on a gluten free diet and a lactose free diet, but all my food runs through me within an hour. I am at my wits end and so desperate to find a diagnoses and cure.