I have been dealing with chronic nerve pain for decades; been on just about every drug known to humankind (last one was Topamax, which sort of worked but left me brain-dead). My doctor told me I should try marijuana: she got me on medical cannabis, and did it ever work! My brain functions again, I'm getting some actual sleep, no side effects, pain greatly reduced. Have now switched to Sativex (cannabis extract, not synthetic) which is approved in Canada primarily for MS.
I wish you well,
Pandora