Hi, I'm 11 eleven years old and while I was doing my hair, I felt my left index finger
shaking from left to right. It was painful, so I looked at it while it continued to happen. It then stopped, but I'm very worried. I don't know what caused it and what I should do. My mom said it may have been a muscle spasm, but she's not sure.
Can anybody give me some insight into this? Thank you.