Is his health okay ?
Is he healthy physically , I mean .
If it is , then there is no need for you to worry .
Autism will not in the least impede him from living a healthy life .
Let him lead a life that seems normal to his own way of thinking. .Might be , he is slow in cognitive skills and cogent thinking as per "our Norma's and our own standards " .
But after all what really counts is living a normal life .It is his life and I feel personally autism is something what we so-called normal humans are unable to think of because it is extraordinary .There are instances you surely would wonder .
Have trust in "Him" , if you do .Just let him live his way , his own life .Seek assistance but if it perturbs him ,you feel then psychiatry is not going to work .
I have seen autism related people ,many and they have adroitness in many aspects .
And lastly , I wish that he turns out to be normal !
Even if he is so ,then he is not lagging behind in mental abilities but he is simply beyond our realms of understanding .
Have faith in whom you believe things will soon see a good turn .I can understand your worries .But don't fret .Get your hands over a Carnegie classic and learn how to get over such maddening worries .That's the best I can proffer !