I was told by my neuro doc after EMG/ NCV testing that I DID NOT have neuropathy. Then last month was told after punch biopsies that I have SFN. What is the difference. My left leg and arm are affected .......and I have terrible pressure in my upper abs and back on and off........TERRIBLE ringing in my ears every night. I'm sooooo miserable. Help! I'm sorry I just realized I put this in wrong forum!