It isn't the end of the world!

(I mean that in a good way!)
My 16yo is undiagnoised (he has been said by 2 doctors plus a teacher who is specialized in it but never formally tested) is said to be high fuctioning. I tried to get him tested at 12 and 15 and was told he was too old AND any services he might get for aspberger's, he already was getting, so what was the point
My girlfriend has an 8 year old and was told he was too young to diagnoise... so I wonder what the magic age is.
Big issues for us are OCD and anxiety both social and general. SO bad he didn't attend school for 3 years, he was homebound. I am proud to say he is in a small hometown school and doing awesome!
He doesn't like to be out of his personal space (safe places) or around a LOT of people he doesn't know. He is social IF he knows them.
When he was little he had texture problems, no socks, no jeans, no tags, no seams (he'd chew them off of his shirt, drove us nuts). He wouldn't eat and still won't eat foods b/c of the texture in his mouth. NO raw tomatoes but he will eat stuff with tomato sauce... as long as it is pureed. Same as eggs...
He is extremely bright but learns differently then most. I can't explain it. He is being tested soon to see exactly how he processes and learns.