Hello @agiordano, I would like to add my welcome along with Ray @ray666 and others. I have idiopathic small fiber peripheral neuropathy. My Mayo neurologist thought it could possibly be hereditary but pretty hard to tell. You might find this webinar from the Foundation for Peripheral Neuropathy interesting if not helpful.

-- Idiopathic Neuropathy with Norman Latov, MD, PhD
https://www.foundationforpn.org/events/idiopathic-neuropathy-with-norman-latov-md-phd/