No expert here as I'm still trying to get to bottom of mine but what you described is pretty much exactly what i experienced, hands first then feet , few months later my lips but extremely mild on the lips, dr's are looking at me like I'm a nut job, i did see a neurologist and he has said it might be SFN but also anxiety can also cause this which i also suffer from a lot , he's asked me to come back in a year if i still have it! hoping he will try a skin biopsy this time as others have noted, do you drink by the way , you don't have to answer that but its something that may have caused mine .... good luck