I got my menarche at the age of 9. Since then no other problems like cramps, heavy bleeding etc have been reported. My only problem is irregular periods and less bleeding (I don't know if it's normal or less but I bleed for 3 days having to change 2-3 pads per day) . I never get my periods on due date and sometimes I even miss . Another problem is that I don't bleed at all in the first 3days of period but start bleeding after 4th day. I've never been to a gynaecologist but got my thyroid checked which is normal.