No, I am thinking that he has several auto-immune diseases and the rheumatlogist may be able to help find if there is anything else that can be done. And they run in families as you can see. I was not thinking any particular disease.

Yikes on the steroids - the side effects especially on a growing boy can be horrid. That can give him Cushing's syndrome on top of everything else. The pred would be the diabetes cause BTW. When he gets off the pred, the diabetes should go away (I had cushing's from a pituitary tumor... I hate steroids).

Hope he can get controlled on the MG. It is no fun.