I've had bad periods since they started just after I turned 14. They used to last for 4 weeks, then I wouldn't have one for 4 weeks. Most of the time I had it was bearable, but for about 3 days each time I would have really heavy bleeding, with huge clots, and really bad stomach cramps. Just before my 20th birthday they finally put me on the pill (rigevidon), I've been on that for around 7 months, after 3 months they also added something else to ease the bleeding. However, since I've started the pill I get really bad back cramps (although the stomach ones are a lot better), and I still have some clotting and have very little energy for around a week. Has anyone else had a similar experience?