See your doctor. There are medications out there specifically for nerve pain. Whether you have determined the source or not, you need to address the pain.

Tegretol, Neurontin, Gabapentin to name a couple.

You should have an MRI done as well.

I am not a specialist but some of my situation is similar to yours.

I was diagnosed with TN eight years ago after four months of torturous pain, many pain meds and many trips to the dentist and doctor. I was eventually prescribed Amitriptyline and the pain went away and never came back.

This spring I started experiencing excruciating pain a lower left molar. This pain would radiate across that entire side of my mouth, top and bottom. I have been on three rounds of antibiotics and pain pills did virtually nothing. T3's helped a bit just because they knocked me out. Anyways, I had a deep filling in one of those teeth and the dentist determined that I needed a root canal. The tooth does hurt less. But the pain has settled in my jaw and cheek and radiates onto the teeth.

Because I have a history of TN I am very confused. I am seeing my doctor tomorrow. To add to the confusion I am reading that many people are against root canals because they can leave lasting infections and cause nerve damage.

Good luck and let me know if you get some answers