@stallen My initial tests in 2015, all the doc said is you have peripheral neuropathy, not specific on small or large and I learned in 2017 with additional testing it was small. Then, in early Feb 2020 I was invited to go to Mayo because other things were taking place, tripping due to drop foot, balance was bad and other weird signs. They gave me a dx of small and large, no autonomic, no cure, no meds to help and no reason. In 2022, started with small signs of autonomic likely caused by small PN. Not having pain, I am thankful. Your ability to walk several miles a day, to me, is extraordinary and that might keep your progression on the slower side. Ed