I am glad the medication is helping for the big pain
Most time T.N. can be controlled with meds or surgery like M.V.D. or gamma, or a combo of both surgery and medication. take things one step at a time let the meds build up in your system and your body to adjust to the new meds your on now . it is good you have had MRI it may show the issue and help in getting you to a much lower pain level.
We will be thinking of you on Friday and hope your apt goes well. Let us know how you do.
PEACE
BMW