Hi HeadPain,
Welcome to our caring Community. While you have developed ON, the cause is right up the Alley of our Resident Expert, Bryanna over on the Dental Forum:
http://neurotalk.psychcentral.com/forum89.html
Re-posting there is likely to get you a wider range of ideas and answers.
As a Classic TN sufferer, I can understand your pain and frustration with this condition.
Dave.