I have a 13 yo daughter who has lost 20 lbs during last 3 mo. Weighs 88 lbs. w/height at 5' 1". She is obsessed with her weight and what she eats. Constantly talks about how much she weighs and what she eats. She just finished a season of cross country at school in which she excelled and is about to begin playing basketball. I have several family members pressuring me "to do something" because she looks sick. I gave her a goal of 95lbs or no basketball. We have an annual physical scheduled with the Dr. next week. I did not find anything on your site addressing this issue. What is your advice.?