I realize I am replying well past a year after you made your post. You may have things all figured out by now. 🙂 I kind of hope so! However, just in case my experience would be helpful to you I thought I would share it. I was just up at Mayo in November of 2020 to have a spinal consult And a neurological workup. I was diagnosed with large and small fiber neuropathy. Everything was worse on the left then on the right and there seem to be a concentration around the tibial nerve. At this point no one mentioned tarsal tunnel syndrome. They did, however, tell me that some of my symptoms were not typical of peripheral neuropathy and recommended I see a foot and ankle surgeon. I had already seen three different podiatrists with no Solutions. I saw the Foot and Ankle surgeon two weeks ago. He tapped four different places on my leg and sent me through the roof. This is when he told me about tarsal tunnel syndrome. He said the nerves are pinched or something. He said that my EMG supports the tarsal tunnel diagnosis but no one at Mayo mentioned it. Maybe because my nerves work just fine until you tap on them. Nobody talked on those nerves, they only stuck needles and some of them. Not that that is an experience I enjoyed! I am still trying to figure out how to put all of this information together into a treatment plan and I imagine I will bounce between my foot and ankle surgeon and my neurologist for a few more appointments before that is all taken care of. My foot and ankle surgeon mentioned that surgery is a possible solution but I have some minor color changes and swelling in that left foot that leads him to believe I could have some minor CRPS. Doing surgery on a body part that has any form of CRPS is a bad idea if you can avoid it. Let me know if you have an update or have found some solutions. 🙂