I appreciate everyone's help and advice. I have not had a spinal tap. I had blood sugar levels checked along with b12 and vit.D. I'm not sure what else. I will ask for copies at my next visit the end of Jan. I do not like my neurologist and I had to wait 3 months to get in to see her. She basically said my PN was idiopathic and sent me out the door with a prescription for lidocaine cream. It does not help in the least.