Hi @hankinbc, Welcome to Connect. I also have idiopathic small fiber peripheral neuropathy and do not have diabetes although I have been pre-diabetic for many years. You might find the following discussion helpful:
-- Small Fiber Neuropathy: What helps?: https://connect.mayoclinic.org/discussion/small-fiber-neuropathy/.

Are you on any pain medications for your neuropathy or do you only have numbness?