The side effects/negatives for me with gabapentin were much less than muscle relaxers, SSRI’s, epitol, pain meds, trigger point injections, topical
combinations, lidocaine patches, etc. I believe gabapentin
caused my feet to slightly swell to where I use diabetic socks to keep from cutting off circulation and getting cold feet. My vision changes anytime the dosage of gabapentin is changed, so I have had to update glasses almost every dosage change.