I'm 18 yr old . At .13 i got my first period . It was all ok ,regular and normal pain etc . After few yrs . About when I was 15 irregularities were started . Each year my periods start to come so much irregular that every 2 to 3 months gap .Then i could visit doctor , took treatment also ,but not much effect ,all in vein . And it's becoming a daily problem just. I can say a annual problem once a year I need to face it and again I take treatment doctor says it's due to hormonal imbalance ..But it's happening again n again...