hi, im a 23 year old female, i've some question regarding menses... my menses cycle normally is 3 to 7 days a month with no cramps... but since january this month, my cycle starts to change.. my menses will go on for a month straight, with heavy flow, and very painful cramps.. then break for 2 weeks before starting a whole month menses again... the cycle have been going on till now.. been to the doctor, all i get was iron tablet and a medicine to slow down the flow and pain but it hasn't been much help..