Your DS is still very young. Also, is he young for his grade? I believe that bright, impulsive children are often misunderstood. Their behavior may seem immature, at times, while they are actually quite intelligent. This can make the child seem "many ages at once" and can be due to asynchronous development.

I do wonder if the tester lacked any rapport with your DS.

Just some articles on bright young children that you may or may not relate to:

http://www.davidsongifted.org/db/Articles_id_10241.aspx

Eide

http://www.sengifted.org/archives/a...nal-looking-beyond-psychiatric-diagnosis

All the best to you and your DS!