My 17 year old daughter was dizzy last night, I was not too worried because she had just been in a tumbling, gymnastics class. She was only dizzy today during track. Today at school, however, she had a couple of nosebleeds (just bloody runny discharge). Should I schedule an appointment with her dr or give it awhile to clear up. She is a healthy active 17 year old. She runs track and is a cheerleader. No current cold or infection that I know of.