Hi there
I appreciate your post, as I can relate, and am learning from your questions and others responses.
Regarding your initial question: elavil 12.5 mg at night for me in the beginning was not effective
Lyrica seemed to help after 3 weeks, for about a month or two at 100 mg/day but then seemed to drop in its effectiveness against burning. However, when I missed a dose 3 nights ago due to falling asleep before I could take it, I suffered enormously for 2 days with burning everywhere. Now 2 days later I'm back to my baseline amount of pain
Just got a script for 30 mg of cymbalta which I am totally reluctant to try since the last anti D I tried made me grossly ill and dysfunctional. But, I am willing to try everything.

I don't want to hijack your thread, but somebody mentioned that LOW blood sugars can cause nerve damage? What! This is important for me to know, since I have had hypoglycemia for 20 some odd years.
anyway, best of luck and update us soon with any news.