To the OP:

I have SFN. I am not taking Gabapentin.

I am not an expert, but I cannot imagine that you would not want to get as much exercise — of any kind, no matter how modest — as possible. Even if this means that, on some days, you have to force yourself to move around.

It was foot pain that put me on the road to my diagnosis of SFN. After nine months of following the supplement regimen found on this site (mostly mrsD's recommendations), my foot pain is vastly reduced and, in fact, almost gone. I have experienced great improvement on the supplements, with only small setbacks. You will want to search through the site, but certainly B12 and magnesium are key for us.

Good luck.

P.S. I just finished my daily 50 min. walk up and down a steep hill. Walking and bicycling are where I am getting my cardio workout now. It is kind of pathetic compared to what I was doing in the gym only a year ago, but it's better than nothing.