Originally Posted by wakkochic17
It's called TMJ and it absolutely can be the cause. There could also be an underlying problem with the joint itself / bone structure. Hard to say what the course of action would be, but surgery would be the last option. I have it myself, but have not had any treatment for it (it doesn't bother me to the extent you are having with it). My dentist told me I had it a few years ago when he did an evaluation of my jaw.
Considering the severity of my symptoms (which has considerably affected me physically and mentally), if this is what is causing it, I should think that surgery will be necessary.