I agree with DeeDee, because I too struggled with this. At first, I was convinced that my son's issues all fit into the oes that gifted children are supposed to have. Hyper sensitivity, motor oes, emotional oes.

Like Deedee, I realized that I accepted the diagnosis because his "oes" were more. He was so sensitive that if someone put those net shirts in soccer on him he would cry for an hour. At 8, he still has issues with smells in the cafeteria, and he reacts strongly to them. I think that's the thing...if he were just sensitive, it would be easier, but his reactions are completely out of proportion with what happened.

Rigidity is how he fortifies himself. If he knows what will happen, he can plan on how to deal with it and get through it ok, but changes throw him off.