I have pain radiating from below my ear (sometimes from the corner of my eye) down the left side of my neck and sometimes around to the back of the left side of my head. I have been to an ENT doctor, my dentist, and an endodontist. They say I do not have TMJ nor do I have a problem with my trigeminal nerve. They don't know what I have. I cannot take Vicodin or other strong medications, or Aleve, and ibuprofen and acetaminophen don't work very well. The dentist and endodontist suggested: chiropractic, or a neurologist, or the head and neck pain clinic at the University of California at San Francisco head, neck and pain clinic. What do you suggest?