Talk to Gynecologist on About Prolonged Periods

I am 17 years old and I have been having my period for 10 days and it still hasn’t stopped. The bleeding is not heavy and there is no pain, just light bleeding from day one. This has happened two or three times before as well. Then the doctor suggested some supplements, and after that it stayed normal for 3 to 4 months, but now it has happened again."