Bob the clicking and pain you have is called TMJ syndrome. I have it but its not bad enough for surgery. My cousin had surgery for it and you do not want that if you can avoid it. Basically your skull and lower jaw do not line up properly. Only way to correct is to shatter your jaw and reconstruct it. You'll have your mouth wired shut for quite awhile and be on a strict diet of whatever fits threw a straw. You can see a doctor or dentist about this.