Hi and welcome -- I hope you find some help here. With regards to your symptoms and back problems: Usually, if a disk or back problem causes neuropathy it is not symmetrical. That is, one side will hurt and the other will not, or will not hurt as much. When the symptoms are symmetrical and start at the bottom of the feet and move up, it is usually a systemic problem, like diabetes, toxicity, or..... idiopathic, which means they don't know what the cause is.