My son had an EMG a couple of weeks ago where they test the nerves in the body (mainly the legs) for their response. The technician said it would only be annoying for him. I suspected otherwise. It was extremely painful for him. To watch the experience, you'd think he was having convulsions every time the signal was sent. This test has left him extremely hypersensitive now. Since the ME, he's always had the hypersensitivity to light, sound, and smell. Now it is even much more heightened and doesn't seem to be receding. The slightest unexpected noise leaves him badly startled for an extended period. The slightest bump of his legs or arms leaves him writhing in agony. The slightest light, even moonlight, filtering into his room at night prevents him from sleeping. Magnesium doesn't seem to making a difference, at least not yet. Would appreciate any suggestions. Thanks.