on sunday i started my period and it was so so heavy.then it stoped and did it again!!

that happened to me when i was 16 and i didnt see a doctor and i ended up having a 3 month long period. so please go to the doctor. what was happening was i was over ovulating or in other words my ovaries were releasing eggs back to back. they would most likely recommend birth control to get you on track but go see them first and figure out whats happening

If it happens frequently it is safe to consult gynecologist. By consulting you may avoid further risks.