Hi, I am a daycare provider and have had this two year old since birth. He could count to 20 by 14 months, new the alphabet , as well as shapes and colors. Over the last 6 months he has quit playing with the other kids, puts his hands over his ears, repeats things over and over, and most recently puts his arm and hand out and shakes it in a circular motion. These are just a few of the unusual things that are happening. Could this be a form of autism?