@blocker, Good afternoon. I can feel and have great empathy for your journey. I am walking right beside you with idiopathic small fiber neuropathy (SFN). My situation is a bit complicated with chronic myofascial pain syndrome (CMPS). Over time, the zaps and electrical shocks continued to wake me up about 5:30 a.m. just so I could have a day of attempts to control pain and numbness in my extremities.

I can sense that you are distressed about the symptoms and also the impact from the very young onset at age 44. I can also just imagine how concerned you are about stopping the PN process before it continues to manifest itself with more aggravating and limiting symptoms.

First, may I suggest.....take your gabapentin in the evening before bedtime (with your medical provider's approval) to have a more restful and uninterrupted sleep.
Second....Discuss your expected outcomes and results with your medical provider and then give him/ her factual and inclusive results about your experience.
Third.....expand your approach to be more integrative with a focus on mind-body connections. For the body, the best solution I have found has been myofascial massage on a weekly basis. Here is the link to the discussion on Connect :
https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/
It might be helpful to hear from @jenniferhunter when she has a chance to review your story.

It seems like this is enough for right now. Just know that I understand, and in fact, we at Connect all understand pain, disappointment, and struggle. Today, many of the mentors as well as me, are living a pretty enjoyable life in spite of the existence of a condition for which there is no known cure and only partial containment. Please let us know how your days are going. Chris