Hi' I am not a pro on any of these issues I am still learning on my own P/N issues with lots of symptoms, Are you diabetic? do you think it might be circulation? Like I said I am not a pro you can put in google the colors of your feet and see what comes up. But just watch out as when ever I google anything on there site for any reason big or small most of the time for me anyway, they give the worst outcomes of the problem and scare the hell out of me. I wish I could help you but I bet someone here will answer your question as there are a lot of good people on this board, smart too....Dex.