I don't have an opinion on what type of PN you may have. I most strenuously suggest that you stop smoking. You can also improve circulation, and quite possibly improve your condition in general, by eating a very low fat plant-based diet, and by exercise, especially in the areas you are having problems. Anytime during the day, flexing your ankles, toes, etc. will increase circulation in those area. Also do some stretches in these areas.

You can find lists of foods that are the most likely allergens and pain triggers. For this, I highly recommend the book Foods That Fight Pain, Neal Barnard, M.D.

But in any case, I recommend a diet focusing on vegetables, starches, fruits, whole grains, and avoiding animal products, refined oils, and refined food in general. And exercise and manage stress. This is what people are using to reverse disease.

Ron