My periods have never been regular. I've never been able to predict when one is coming and how long it will last. The only constant is that they've always, without fail, been very heavy and come with huge clots that are (on average) about the size of the tampon.

There have been times when I went without a period at all for about 5-6 months and then bled for over 2 months straight, and this time around, I've been bleeding just over a month with constant clotting like I mentioned above. I'm changing tampons *and* pads (I have to wear both) at least once every hour or two. It's making me feel sick, tired, run-down, etc, and it shows no signs of stopping any time soon.

I know I need to see a doctor and have an appointment next week, but are there any ideas about what this may be?

Note: Previous ob/gyn visits have led me to learn that I have a small, somewhat underdeveloped uterus. Is this the cause of my problem, or another symptom?

Thank you for your time.

Without a complete history and physical, I can't say for certain that is definitely what your problem is, however, I would like to give you some food for thought to take to your new OB/GYN

PCOS (Polycystic Ovarian Syndrome)
Endometriosis
Ideopathic Thrombocytopenia Purpura

ITP is a rare blood disorder and most likely is not what you have, and most doctors have never even seen it, however, the symptoms you describe are similar to ITP. My mother-in-law, sister-in-law, and 3 of my neices have ITP and all have these symptoms.

Most likely it is PCOS or Endometriosis. Let your doctor know that you want to explore these potential diagnoses. It is important that you are proactive in your healthcare and get all of the answers to all of your questions in language you can understand.

Bleeding this long can indeed wear you down and make you tired, you most likely have a form of anemia (Iron Deficient Anemia) because of the length of bleeding time.

Good luck to you and keep us posted as to what you find out.