Is a therapist ever allowed to use/share my information without my knowing (for publications, case studies, etc.), provided he/she conceals my identity or otherwise makes me "untraceable"? I'm worried about becoming "material."

Recently I've been thinking a lot about ways to relieve my stress and other mental problems such as OCD and ADD and I have been hearing that meditation, yoga, tai-chi, etc. can possilby help with these problems that I have been suffering with all my life, but I am very confused as to which one would be the best for me.

Also, if I find out which one would work the best for me, how would I go about finding someone that could teach me these things? Or is a book a good way to go? If a book is a good way to go would you suggest one of those "The Complete Idiot's Guide to..." books?

I've heard about an eating disorder in men sometimes called megarexia. It is supposed to occur in bodybuilders or men who avidly workout. I heard it is an obsession with gaining weight or muscle. Can you tell me more about it?