Hi, I am 21 year old now. I used to have 10-14 days bleeding during menstrual cycle when I was 19. Doctor prescribed me duoluton-l.i had it for 6 months. My periods were normal. Then again I stopped it and again it become a bit irregular like for 10 days .again I am having the prescribed medicine continuously for 1 year and my periods are going well. My height is 5 feet 9. And weight is 54 kg. I am thin since childhood. Should I discontinue the medicine now or I need to continue having it to maintain the regularity of my periods?