My 5 year old son was diagnoses with PDD-NOS a year ago. He receives wraparound support for behavior and self help therapy at preschool. He does not receive additional OT support. He is starting to really worry me because he runs FULL FORCE into furniture, walls, and people. He has bruises all over his body. I am afraid he will seriously hurt himself or seriously hurt someone else. My older kids get hurt by him often. I am wondering if this is what is going on with him.