Hello Leeanne . you are across the pond . maybe this link might help .
Trigeminal Neuralgia Association UK patient support
http://www.tna.org.uk/

I agree with EE03 you have been off meds for a while. 2 yrs did you say ?? long enough for it to be out of your system and your memory should have slowly rebounded to some extent. I would bring it up with your Doctor.
I would research and ask about MVD surgery. If your MRI shows a compression MVD might be something to look into and think about .MVD surgery helps plenty of people with T.N.find relief and get away from the pain.

Look up top of page here and go threw the stickies , there is lots of help and info on the useful websites thread, tips for new comers etc..
Sending low pain to you. hope you have a nice week and things get better with your memory . Let us know how you are doing and if you have ??s or need help or info just post . we are here and we'll try to help. Glad you found us
PEACE
BMW