My 10 yr old daughter is having muscle spasms/twitching in her right arm. It is between her elbow, and shoulder. The arm every few seconds spasms. Her arm and hand shake since this started. It was noticed after she vacuumed and we thought maybe she pulled/strained a muscle. Started 4 days ago. Did see Dr. And she said to drink alot of gatorade, and eat bananas, and see if goes away. Was thinking low potassium possibly. If not better in few days, then we'll do bloodwork. Does anybody have any ideas? She has been extremely healthy, until kidney stones which occurred in february. I don't know if this is neurological, or not. Her Dr. Did have her try pushing her hands, pulling, cked reflexes etc. That seemed to be ok. Any input would be appreciated. Thanks.......