Does anyone else's LO hit themselves when they're mad or upset? My son has been realllly overly sensitive lately and the past 2 weeks, when he gets mad or upset or in trouble, he smacks himself in the head or will literally get on his hands and knees and hit his head on the floor and runs over crying. I don't know why this started but it's getting to the point where I'm getting worried that he's actually going to really hurt himself. If your advice is that he'll learn, please don't bother commen...