My daughter is 14 yrs and takes no meds. She has like a uncontrollable quiver or tremer almost like she is freezing but isn't cold. It's like in her legs and arms and she says it comes and goes. She doesn't like it. She has no pain but is always tired. When it was happening tonight we were relaxing eating dinner at Apple bees. I said are you cold ? she said no and got up and walked a bit like she was going to the bathroom but when she sat back down it was happening again. She said it is in her neck legs and torso not so much in her hands. She was still holding the fork fine. Then it would start to stop and she said I think it's stopping but kinda linger. By the time we got home it was gone. She said it happens at school and some thinks she is cold. She talks fine walks fine. It reminded me of myself after I gave birth just and uncontrollable shake.