Hi. I have tarsal tunnel syndrome probably caused by fallen arches which made my flat feet even flatter. The left foot is much worse than the right. The left foot is much flatter than the right. I have had 3 decompressions on my left foot with no results. Not even from day 1. This all happened 4 yrs ago after my second tkr. My feet are constant freezing, burning, tingling all at the same time. Nothing helps. 600 mg gabapentin 3 times day. R-lipoic acid, b complex vitamins. I am probably literally walking on my nerves. Same with or without my orthotics. PT to eliminate scar tissue but no help with sympthoms. I am literally at wits end. Any suggestions!