Hi my almost 2 year old has been banging his head on things on purpose for the last year. At beginning it was banging back of his head against pram while in there or sit against the wall and rock to bang his head. He does it rhythmically I've been telling him not to. Last few months he has started going on all fours and banging his front of his head against the floor luckily he's doing it in our carpeted living room. I'm not sure why he's doing it if it's relevant he does still have his fontanelle slightly open (drs are not concerned) and he's only saying 3 words. Any advice or anyone else's little one does this thankyou x