hi. i think it's great you are so concerned and want to help your friend, but i think it is best to leave the diagnosing up to the professionals. you can certainly tell them what you have observed in your friend's behavior if he agrees to see someone and allows you to contact them. that would be helpful. PC does remind us not to engage in trying to diagnose someone over the internet since we're not professionals and we're not present with person. i do hope he will go see someone and things improve for him whatever the diagnosis is. he is very lucky to have such caring friends.