My daughter shakes for a few seconds sparatically. It coud be at any time of day, and she will all of a sudden shake(only her upper body). A while back, when i noticed her doing it, i thought it was on purpose. Until last saturday she did it like 5 times within the same hour. It was clear she wasnt doing it on purpose, her muscles in her arms were tight, and the look on her face...she looked scared or like she wanted it to stop. Sometimes she looks around, sometimes she stares. I took her to the emergency room and they couldnt do a catscan because she had ate within the last 8 hours. So now she has an appt to see a Peds Neurologist to find out whats going on. Please let me know if any of you have ever heard of this before. Thanx!