Ds has been doing this for a while now, whenever he is cross or frustrated he hits his head very hard off of the floor or walls very hard.
Mostly when another child takes something from him or when he is told off. He won't stand up for himself with other children - he is very passive and then does this.
We have tried various things to get him to stop - for example; ignoring him, distracting him, taking him away from the situation, putting him somewhere softer. None of these have worked.
He has bruises all over his forehead and a particularly big bump from today.
Has anyone else had this? I have heard for so long now that it's a phase, that it will pass etc etc but it doesn't seem to be. I just don't know what to do to stop it.