I was on Gabapentin for many years and I developed a terrible pain in my right thigh.
When I stopped taking it the pain went away. In my case the Gabapentin was contributing at least to that pain. I was off it for awhile and I felt good after the initial withdrawal. (About 2 weeks) The withdrawal was not severe just mainly tiredness and some mental fog the first week or so. I actually felt pretty good off of it.
I developed another pain in my right arm which was severe so I had to start taking it again. I noticed that the pain would be worse at night and the Gabapentin would make in more intense. It didn’t really help at all so I’m cutting back and stopping again to see if the arm pain subsides.