He could have ADHD along with AS, my son was diagnosed at 4 1/2 with PDD-NOS and ADD, but i'm in the process of having him rediagnosed now, there was alot he could not do in the first testing, an now i'm hoping they can get a clearer picture and i'll know if it still fits. The regular classroom may be to much for him, too many kids and too much going on, your school should have a learning center that will be smaller class size that he can go to for some of his learning while at school, that should be put in place when you have an IEP meeting, his getting up and down and attention problems can be adressed there too, they may need to let him take small breaks during some assignments that are too long. Discuss your concerns with the school counsler. I assume you have an IEP in place already, is he in any special classes already? I took my son off meds after about 1 1/2 years because i didn't see much difference but he was more inatentive then hyperactive and i don't think he was on the right meds. I hear it is a big help with a lot of children though especially the 2 i know that are hyperactive.
Well I probably wasn't much help, my first time on a site talking about it.
Good luck