You should see a doctor, someone that knows about it.
Asking that in a forum is stupid. But in a bitcoin forum, are you for real ?
Don't know where you are from, but for me it doesn't seem stupid asking about losing weight in forums. Asking it from doctor seems more stupid, 'cos I think you can get much more help from internet (from right forums), than from normal doctor... But you're right, this really isn't the right forum to ask about that subject.
Anyway we can try to help OP if he would give some more information about him/herself...