It's like hitting your funny bone over and over again. I think it went on for about 15 minutes per hand. Just a really creepy electrical pulse running through your hand. The nerve conduction test was done with electrodes, no needles, so there wasn't sharp pain. Hounded by my sister who had successful carpal tunnel surgery in both hands, I decided I needed the emg/nc test to see what's going on with my hands. A cortisone shot helped the tendonitis for a few months but the pain came back after I lifted my grandchild's 16 pounds for a week (I'm 59 years old).