Roo, I had one of those nerve conduction tests a number of years back....it was the wierdest thing I've ever experienced. What it had determined was that my ulnar nerves had been damaged due to the type of work I was performing at the time. The numbness and tingling felt just like when your leg falls asleep, but only on my pinky and the next finger to it. For the longest time I just thought my hand was asleep like my leg would every now and again.
I had to go to physio 3 times a week, and have electroshock type thingies attached to me, and then ice cold water soak proceeded with hot water soaks. I was also fitted with these extremely obnoxious arm braces I had to wear at night while sleeping, that locked my whole arm and wrists into a very uncomfortable position. But I could sleep through the night without waking while wearing them. If I didn't wear them I would constantly wake up.
I did this for 9 months and the ulnar nerves only got a bit better, so they sujested surgery. I asked what this entailed, and was told that they would cut the damaged part of the nerve out and over time it would just grow back. Well I asked a guy that was in the same physio as me who had this proceedure done and he told me that if he had to do it over again he would not. He said that when the nerve was growing back, it was the most horrifying feeling he had ever felt. I declined the surgery and have learned to basically live with the numbness and asleep feeling in the fingers.
That's now 8 years, and since then I've even learned to pound leather and all that, even with the numbness.
But that nerve conduction test was about the neatest thing I've ever seen or experienced.
Ken