I would suggest getting a second or third opinion. If you're in the 5th percentile then that shows structural degradation of your nerve fibers, no? Personally, if I could have some sort of confirmation of neuropathy I'd be going the Pirenzepine route to try regrow the fibers, then
ARA 290, etc. There are some unconventional treatments for neuropathy, but if it's TMS it'll do nothing for you.
The only real test is the skin biopsy, but even then, they need to test you once, then test you again a year later and compare the density of the nerve fibers and again a year later.
I've done so much research on this, studied articles and have been on every FB Group/reddit/forum available, and every sufferer says their symptoms change daily - one neurologist claimed "
The only thing predictable about neuropathy is that it is unpredictable". I've been to Neurologists where I legitimately knew more on the subject than them. Sucks I can't get the test in Australia and Corona makes it impossible to fly to Europe. I would hate to pursue this TMS route for years and years just to find out it's useless for the structural damage.