When p is throwing a tantrum he pulls his hair so hard and will start hitting himself in the face. it has me a little worried. does this sound like normal toddler behavior? Also sometimes when he is sitting by a wall or ion his carseat he will bang the back of his head off the wall. (he does this when he is not upset at all, almost like he is doing it just for fun?!?! ) it kinda scares me that it could be autisitic signs but then he is a toddler too and toddlers do weird things.... He is very very social, smily and interactive with strangers and us.