Wondered whether anyone had any experience of a child repeatedly head banging. We have just done a home visit for a new child starting our Nursery who will be 4 in March who spent almost the entire visit, at least 20 minutes sitting in an armchair rocking backwards and forwards banging his head on the back of the chair. I thought it a bit strange but thought perhaps it was a shyness as we were there but then Mum brought it up that she was worried as he does it all the time and they can't sit next to him on the sofa as he bangs all the time. Obviously we don't know much more as to whether there are any other problems yet but wondered if anyone had experience or knew why he might be doing this, whether he may be on the autistic spectrum perhaps. We will find out more when he starts with us.He apparently was late to speak and only started about a year ago and does not say a lot. Not sure how much, as he didn't speak to us at all but grunted a bit. He is in family with English and another language.He has been at home mainly with the Mum speaking the Non English Language however he does understand English as Dad is English and siblings already at school.