I am so sorry to hear that your son is ill. Here is a website dedicated to Lyme induced Autism that I think you might find useful: www.lymeinducedautism.com/
opening page on their site;
"Autism now affects about
1 out of 100 children.
How many have an underlying infection like Lyme disease that is causing autistic symptoms?
Many physicians and studies now show that it could be as high as 90%"
You would be wise to also evaluate yourself for Lyme or other tick-borne infections, as lots of children get Lyme disease from their mothers -either through the placenta or through breast milk.
Another site that could be very useful to you is Dr. Charles Jones' site: www.drjoneskids.com/
Dr. Jones is well known as a child specialist for Lyme and other tick-borne infections. I believe it would only do you good to go through his site as well!
Please do some reading on here as well, as we may have some info that the other sites don't. A good place to start is our "New to Lyme? Start here!" thread at the top of the forum. We also have a really good search function to help you locate threads and posts that pertain to your son's symptoms.
May your son's healing path be smooth!