I don't normally have early periods. This time it came 21 days after last one. I had very heavy bleeding for first 2-3 days. Then the flow lessened a lot but I continue to bleed, over 10 days after (my typical period lasts 4-5 days). I am heading to doctor tomorrow morning as very concerned. I have checked out my symptoms online (should never ever do this.....) and uterine, endometrial cancer come up over and over. I am scared. Has anyone else had this happen to them before?