I never had this with my DD until she was a lot older. My 11month old DS has full on tantrums if, for example, I take something off him or pick him up when he's doing something he's not supposed to. He will scream, throw himself to the floor, launch himself backwards and repeatedly bang his head against the wall/floor, which makes him cry even more. He has such a temper! Is this normal at such a young age? This started at least a month ago and is getting worse.