Hi, I have been getting progressive sensory problems over the last four months - burning, freezing cold, tightness, numbness, prickles and grit sensation in hands and feet, dry rigid nails, dystonia (?) in face. Was assured this was FND. Having pushed and pushed for nerve conduction studies, on Friday I discover during tests there is an organic cause - demyelinating neuropathy. This is a chronic condition. I would just urge everyone to read up and challenge symptoms that don't add up or you are concerned about. FND often accompanies other neurological disorders. I say this not to scare anyone but to question because there might be treatment which you could be receiving and you aren't getting. I can only speak from experience but have gone through 4 months of hell. Changing neuro now.