She is 3.5 and when having a spectacular tantrum, a really big big tantrum she will hit herself across around the head. She has smaller tantrums from time to time and behaves pretty standard and recovers from them easily. But sometimes she has these red mist tantrums, perhaps one a week or less and she hits herself around the head in a frenzied nutty way and to be frank it looks bonkers and is embarrassing if in a public space. Do other pre-schoolers do this?