Happens to me every now and then. My dad claims it's when you gain or lose weight, but I'm not sure that has anything to do with it.

I hate biting myself!

I have that happen cause of my braces, but not in chunks O.o my cheeks have pretty much built up a tough wall if skin from all the braces and bitting.

You are deficient in Vitamin C. Check with your doctor.

It means your body is heaty. As an Asian , that's the usual dianosis. When you tend to bite and get ulcers , it means youre too heaty and need to take more cooling foods (ie, less fried food, more salads , tea, etc.)

This happens to me too, all the time. **** Our Lifes.

Dude that's so weird i had the same thing but it went away after a while

Owch! I've took a chunk out my cheek before and it's so painful!! :c I really feel for you!

I think thats pretty normal. It happens to me a lot, usually when I am chewing too fast. I'm sure some people are more prone than others based on the shape of their jaw or whatever. BTW thats a really weird thing to see a doctor about. Do you also ask them why you stub your toes?

That was happening to me a lot but not anymore since I took my wisdom teeth out