hello there ..  i am 23.. this year, i just had my heavy flow last january.. yet i think that was normal.. yet, this february, i am experiencing more than a week of menstruation.. after 7 days, i thought it was over cause i had only few discharges, but after a days or two, it will repeat.. for a week again.. and it stop, and it will be back again.. what could be the reasons for this ?? i haven't gone to the doctor yet to think this will be over.. my flow started feb 2, dn its feb 23 now, and i still have it ..

help me please.. thanks