@orsons - Your symptoms sound very familiar to mine, started in one foot, then the other. My MRI did show stenosis and lower back issues "but not serious enough to cause the PN". Your other symptoms I can relate to, and Mayo did rule out autonomic. I am 9 years into this and at times, I think we all wonder which is worse, the numbness, pain, balance issues and many other symptoms or the way in which it impacts our lives. And it does! After going to 5 neurologists figuring, I'd get the cause of this as I'm not a diabetic, all I got was shrugged shoulders. So, unable to control the PN, I figured out some coping mechanisms which enable me to do what I can do, and I try not concentrate so much on what I can't do. I'm now in my mid 70's and continue to be as active as possible wearing AFO's due to drop foot and even with balance, my wife and I are doing a cruise in the fall. We all need to figure out how to live our lives safely despite we have PN. It's possible, keep positive.