Does my son's symptoms sound like Asperger's Syndrome?

My son is 6 years old. He's had 2 brain tumors removed within the past year. He has coordination issues along with some mental issues as well. We believed the issues stemmed from the tumor and PTSD from surgeries and all else that he had been through. Now, the more I'm looking into Asperger's, the more it seems like this is what he is suffering from. First, he is a very articulate 6 year old. He's been called "genius" and "wise beyond his years" for as long as I can remember. He's very very smart. He also gets hung up on certain things as well. Like right now, he is hung up on school. We play school every night. He has charts, tickets for good behavior, school work, etc. It's a big deal to him if we miss a night He prefers to sit and talk with adults vs. children. He can't catch a ball or throw a ball very well. When we go to a playground, he doesn't really play on the equipment. When we need to go to the store or church, he always puts up a big fight unless it's for something he wants to do. We always thought he was just being stubborn and never really thought it might be something more. He's very shy when around large groups and when he sees his "friends" from school in public, he tends to put his head down and not say anything. His coordination problems were thought to be from from the tumor (in cerebellum) but it just doesn't seem to be improving. His motor skills were delayed when he was an infant as well and there's no way to tell if the tumor affected him then or not. His occupational therapist told us that she thought he had some signs of Asperger's and so does his mental therapist. Now, I'm in sit and wait mode until I get a referral to the right doctors. I was just curious if anyone had experience with Asperger's and if my son's symptoms were enough to say he does have it and what can we do to help the issue. Thanks for your time.