Try giving them supplements, VitB Complex and Vit C also fish oil, and dont feed into the behavior if he is oppositional, ignore what you can, sometimes if you react it makes it worse.
Hi,
I have a 13 year old son who also has this disorder along with a few more. I am constantly fighting to keep a grip of my sanity and often feel like i'm going under. Don't know if any medication as I too have only just had this confirmed.
Barny