Another interesting question. For the longest time, I have been like clockwork-knowing almost exactly when my period would start. But, for the last 6 months, I've been irregular-even being a week early these last 2 months. I am also more painful the week before and during my period. Also, it has been lasting longer-like 7-8 days. I had a pelvic ultrasound last year (LOVELY experience!) , and everything was normal. Besides having fibro, I'm also in lupus limbo, and I was/am worried that I'm bleeding too much. Besides the heavy flow, I have petechiae on my legs and feet, but my bloodwork (CBC, platelets, PT) have been normal. I also bruise really easily, but that's probably because I'm such a white girl. LOL-I've been trying to stay out of the sun, so I'm really pale-almost clear, really!
Anyway, I've gotten off the point, which is typical of me. Let me just answer your question. Yes, my periods are different (early, heavier, longer, and more painful). Sorry you had to get through my babble to get my answer. But, babbling is what I do best!