I would just like to add to what Giftodd stated. My son who was just recently tested and placed very high also had a lot of social issues in pre-school. He had a lot of potty issues when he was three and we couldn't figure out what was going on. He would have a BM accident almost every day. Unfortunately the pre-school teacher was unfit and started kicking him and letting the other children come and laugh at him in the bathroom while he was cleaning up in the bathroom. It got to the point that she would just lock him in a closet for periods of time when he would do this.
Well we finally figured out that he was lactose and tolerant around a year and a lot of money later. Anyways, once he started into elementary school he flourished socially. He still has some issues, due to the other kids not being able to keep up with his extensive vocabulary, but he still gets along with everyone and plays with a group of around 3 kids. Also, he really enjoys the company of kids around the age of 9 or 10. He seems to do a lot better conversationally with the older kids because he doesn't have to explain in detail everything he is saying.
