Vincenza... any hard scientific "proof" of mental illness of any sort would be an absolute dream come true. I used to fantasize about MRIs that would take pictures of my brain activity to "Prove" what was going on. All I had was my experience but without actual proof of my internal pain, I didn't give it much credence... At some point I started self-injuring to make the pain "real" ... because if I couldn't see it or touch it or show it... It wasn't real. I was just lazy, stupid, worthless, faking...etc., etc., etc. What a gift it would be to have a blood test explain it all!