My wife has had a problem with pain in her mouth and neck for over a year. Dentist call it a sinus bubble. Doctors said it was a thyroid problem. She found a lump on her breast in October, and was receiving radiation to eliminate it. Had a tooth pulled in Janurary, and pain lasted to long. Oncologist did biopsy mid Janurary and found stage 3 squamous cell carcinoma. I am not trying to scare you, but cancer is hard to diagnose by most non-oncology doctors. See an Oncologist soon.