Did you start this since weaning the gabapentin only? Never before then?

gabapentin dampens nerve signals, maybe you are reacting to everything firing at a higher rate? Gabapentin can be difficult to wean off of for many reasons. Sometimes people have to go back up and wean more slowly.

I think it is great you are getting NCS/EMG. I would hate to see you have to put that off but you need to be comfortable. Have you let your doctor know?

Also, even if your EMG is negative it may still be worth a peripheral nerve consult (plastics) with someone who does scratch collapse test. My neuroma was not clear on NCS but did show up on scratch collapse.

I hope you get answers soon, Littlepaw