LOL ah, me too. A full psycho-ed assessment for my DS with a psychologist who said "he's definitely NOT on the spectrum" hasn't stopped the school from thinking that he is.
I'm learning there are different tests involved though. Astroboy has your son had the ADOS done? (Mine hasn't... yet).
In all honesty, I'm considering Asperger's at this point. There are worse things. One of the desirable aspie traits is that they're not as subject to peer pressure as typical kids, and my DS fits this to a tee. I'll take that quality even if it comes with the occasional temper tantrum.
Also, if it's any consolation, my DS is now 8 and is MUCH MUCH better than he was at 4 & 5. For example, in Kindergarten he had to be hidden behind the rest of his class on stage to avoid disrupting a Remembrance Day ceremony. Now in grade 3 he is a mentor to a grade 1 student and fits in well with his peers.
It gets better
