Hmm...I'm a bit opposite. My periods for the last few years have been pretty irregular. My last period didn't hurt too much. Maybe a bit of cramping but it was really light and lasted only about 3 days. Before that, I remember I had a period where it was really heavy, like I had to use two pads in fear of leakage and when I used the bathroom I had to clean the toilet every time I used it because SO MUCH RED EVERYWHERE, and I felt bloated and cramped like crazy. It lasted for probably 8 or 9 days.