Hi Vera. There are some very good child professionals in psychiatry. They do dx (diagnose) all the other things first and only after age 18 do they go for the adult dxs.

 

This often done because of the way insurance companies pay.

 

One child psychiatrist in Canada where I live, mentioned that it's a bugger to get into the system, however once in it there's a lot of referrals and information available. Check with the mental health at your local children's hospitals. (at least that's what I recommend from my Canadian perspective).