Hello, my 10 year old daughter reported to me that during warm-up in karate class her heart started beating very quickly and she felt very tired suddenly. She said that a short while later she felt tingling in both her arms. The fast heart rate lasted a short time, the arm tingling longer (no more than half an hour because it was a 40 minute class). She did receive some upsetting news yesterday (her best friend is moving away) and I m wondering if these symptoms could reflect a stress response, a panic attack or possibly something more serious. Should I wait and see if it happens again or have her checked out? Thank you.