I noticed your post and wanted to welcome you to neuro talk... sorry you have been living with this ugly pain. I have been suicidal at times in past. I post in the S.O.S. forum here you may want to stop in sometime.
the link here will take you to S.O.S. forum .
http://neurotalk.psychcentral.com/forum29.html

a bunch of wonderful caring folks. everyone here at neuro talk is undertanding helpful and very supportive. If you want to vent or talk or in want of a cyber hug..I am here and I know you will meet others.Your not alone.
If you dont mind me asking what other meds have you been on? do you see a neuro ? a pain doc? both? do you have an idea how you got this ...teeth work infection accident ???
If you dont feel like sharing thats okay too it dosent matter what dose matter is making it threw each day.
Sorry for your pain.
Healing positve wishes for you.
PEACE
BMW