Sorry don't have a lot of time right now to discuss in depth but will quickly add a few links I found useful in trying to understand the whole neuropathy thing.
All the best for your GP appt. - I hope you get a definitive diagnosis of type and cause to help figure out a possible prognosis and treatment. By now from reading other posts on this site you'll realize that doesn't always happen - if that's the case you're in good company and we'll be here to listen if you need us.