I am 21 years old and have had dizzy spells for the past month or so and have also had my cycle start every two weeks for the last 2 months. I am on birth control( ortho tri-cyclen lo ). I Have taken it for the past five years, except when i was recently pregnant (from nov. 05 til aug 06). I don't have health insurence at the moment. So I only want to go to see my doctor if I have to. Please let me know if you can help me.