Don't stop your treatment, op. Unfortunately, given your history, you can't be trusted to diet, exercise, or watch what you eat. At least, not right now. Just the fact that you're in treatment and thinking about dieting says to me that you need your treatment now, more than ever. "I'm not underweight by too much." " I'll never be a healthy weight unless I diet somewhat. " You're still underweight and you're still thinking about dieting. There is a middle ground, but you haven't made it there yet. I've been there. It sucks. Restricting and exercise were my heroin. I'm rooting for you. Please love yourself enough to stay in treatment.