lilly i have had a number of emg/ncs's and they really werent that bad for me with no lasting effects. It was the only pn related test that i have ever had that has come back positive and with which i have been able to track the progression in my legs, feet and hands/arms. People with PN react differently from each other with the same tests, meds, therapies. What is good or bad for one may well not be the same for another.