I am 12 days gluten free. On about day 5, I started getting twitching of the muscles in my body. They are mostly in my calves, feet, and thighs. Some in my abdomen. Some in my shoulder. Mostly the legs though. I never had this before going gluten free. It is easier to ignore, or less prevalent during the day. But sleeping time is the pits. I never had problems sleeping before. Now, as soon as I fall asleep, my leg muscles twitch and awaken me. My wife feels them as well. It is disconcerting, and frustrating. I'm not sure what to do. Ugh. I feel your pain.