Hi Doctor, I got my 2nd menstruals in the same month within 10 days.. on 7th got menstruals with less flow and stopped by 3rd day, i.e on 9th, again started on 17th n more than my regular flow. This situation occurred for the 1st time in my 15 years of this menstruals cycle.. it's scaring me a little bit as I heard it may lead to harmonal imbalance. Could someone suggest me, what could be the reason? Iam feeling more of tiredness, back pain, more sleepy, more hungry and sometimes not..