I had something similar throughout 2007, and I left it till Mar/08 to deal with it. Not a good plan

, and this is the reason I am ALWAYS asking people with new symptoms to be checked for infection.
A root canal procedure is really not that bad of an ordeal, but it can be costly if you need a cap. I think most of my teeth have had root canals now.
What happened with me is that I got a cap over the root canal, several years ago. It suddenly started hurting while I was traveling in the US, but I waited to come home to have it checked. It took a few months before the dentist figured out the problem (in fact his dental assistant did, when cleaning one time), but what it was, was that I had broken one of the roots under the cap.
He managed to keep the inflammation down from Oct/06 to Feb/08, by injecting something in it every several months. I have a high tolerance to pain, and he told me I could hang onto that "much needed molar" for as long as I could tolerate the pain.
2007 was a difficult year for infections and MS symptoms, but I blamed it on everything other then that tooth "inflammation".
I had it pulled in Mar/08, and finally my symptoms and health started to turn around. The damage was done though, and I did not recover fully from the last year of infection in my body.
DON'T LEAVE INFECTION UNTREATED!
Good luck. I hope you start feeling better too when this is all said and done.
Cherie
__________________
I am not a Neurologist, Physician, Nurse, or Hairdresser ... but I have learned that it is not such a great idea to give oneself a haircut after three margaritas
.