Hi Poohbear ~ Me Too! I am in the process of trying to figure this out with my gyno! I went without a period almost 3 months... had "fluttering" (mentioned on other boards) feelings now and again and testing for pregnancy was negative. Then out of the blue had a heavy period with clotting that lasted about 10-12 days. Then skipped about a week or 10 days and period w/ clotting started again and hasn't stopped!!!

After a trip to my Dr. last week she is thinking "peri-meno" but is running some tests and did another pap.
One thing to be VERY careful of during prolonged bleeding is your iron levels. Mine 9 months ago (at last annual was 16 ~ last week I was barely hanging onto 10 ~ she told me most folks need transfusion when they drop below 9) so she put me on iron supplements a multi vitamin with strict iron rich diet!
I am getting really worried at this point and am to return for re-check on the 11th. One option she gave may be lo-dose birth control pill which at 45 I am not anxious to start.... will post again when I have results next week.