Did your mom make you mad and that was what triggered you?

When I was 13 I was constantly fighting with my mom over /everything/. Parents usually become the enemy at your age. I didn't get along with my parents until I moved out at 19. Now I call them every other day!

If you can, try and keep up the dancing and physical exercise. It will help alleviate and distract you from the restlessness and agitation. Remember that its important to have "me" time where you do things that you enjoy. Also a therapist if your family can afford one. That's probably the one thing I wish I had as a teenager.