My Daughter Has Been To Er And Doctors And No

My daughter has been to er and doctors and no one can tel us why she has nausea and diarrhea and stomach pains every time she eats within no more than 10 minutes if she even finished the meal. She had Lyme disease this July and has anxiety issues and depression but is otherwise a normal healthy 17 year old except she is a germophobe so she washeas her hands all the time and won't do housework