Okay, thank you so very much!
I think that I have seen that kids with Sensory Processing Disorder can have this problem. Check out this site and scroll down to Hyposensitive to touch . http://www.sensory-processing-disorder.com/sensory-processing-disorder-checklist.html
Then you might want to try some of the "Heavy work Activities" listed here.
http://www.sensory-processing-disorder.com/heavy-work-activities.html
I was also going to suggest you post in our SID community and saw that you just did. Specialmom has a child with SID or SPD and has a lot of resources. She is in a number of forums. If she doesn't get back to you soon I will message her.
And yes, looking at your longer post. SPD does sound like a definite possibility. I would see if there are any OT's in your area that work with kids.
Keep in touch - best wishes.
Haha it's insane! A horrible habit! Thank you for the advice!
SIgh! Six months is a long time, it's sounding like a thoroughly entrenched habit by now and he's become something of a pain addict imo.
If you can't divert him to something less damaging such as a brightly coloured noisy mechanical toy (anything that's more fun for him), other than consulting a doctor, I'm at a loss for suggestions.
Maybe since his first birthday, he does it like its a game and if you tell him to stop he freaks out and throws a tantrum, and when you tell him no he thinks it's funny. It's not a good thing though because he will hit itself so hard in the mouth that his hand starts turning red. There's only been one time where his mouth started bleeding because of it. I can't make him stop though he just does it and he does it from the time he gets up until he's asleep.
Over how long a period has he been doing this?
I gently tell him no, try to distract him from doing it but he does it no matter what, it's painful to watch because he doesn't listen and if I tell him no he throws a crazy tantrum. :(
It seems he's learned that pain has its attractions and has acquired a habit of self-harm. I assume there's no question of extreme emotional distress having led up to this (such as happens when people start cutting themselves to distract their attention away from unbearable emotional pain).
What have you tried towards encouraging him to stop?