Hi, I had a emg yesterday as one of the tests for my plethora of random symptoms. I won't get the results back until next week, but had a question in the mean time I thought someone might know about. When the nerves in my right arm were stimulated my whole torso convulsed with the shocks , as well as my arm... Is that normal!? What does that mean? Also, within an hour after the needle part my arm and hand clenched up ( which happens from time to time) but it was so tight it hurt and was completely unusable for 2 hrs. Any insight would be appreciated thanks.