Hi!
I joined a month ago and my son 4 1/2 is being evaluated for AS.
I know exactly what you mean about others seeing a bright, articulate kid who is just a little 'quirky' but nothing more! However, if they babysit him or spend time doing something more in depth (very few have done that--one babysitter, his teacher), then only do they know what I am talking about!
This is a GREAT place to bounce questions off people. Very helpful.