Don't despair. It seems like we all fall in the cracks first before we get answers. With due diligence, lots of reading, and a ton of moxy, there is a light at the end of the tunnel. It starts with taking our personal power back and ends with great joy in our own awarenss and understanding on how to achieve and maintain health and hapiness.
Everyone's path is somewhat unique although there are some commonalities too.
If I was you I would start by never going back to mainstream pharma slaves, unless you want to continue on your present path. We can't expect to get different results unless we take a different approach :-)
First and foremost describe your son's diet...let's start there.
Take some time (lots of time) and research this site. This is a good starting point.