Need suggestions, he's destroying the house (literally)
So we have a 3 year old on the spectrum, if he's mad, frustrated, bored, anything at all he runs into a wall in the house or bangs his head against it until someone picks him up. As soon as he is put down again he runs over and does it again.
I thought something might be physically disturbing him so we took him to the doctors and they said these are just autism traits. He started the headbanging again a month ago, he was going a few months without doing it. We tried putting a jacket with foam up past his head on him and he will use any other part of his head to beat the wall. He will also kick it.
Are there any ideas? We can't do anything for 5 seconds without him doing this. He has so far put 8 holes in drywall.
Edit: We have had him on the gluten/casein free diet for about 2 weeks or a little over now.