i have been bleeding for 3 weeks heavy and big clots bright

Hi hon: This all depends on your age. IF you are in your late 40's then it is probably the start of menopause. You can feel like your hemmoraging. It is an awful experience. If you are considerably young than that, it could be to do with your ovary, probably a cystic ovary - my guess! If the ovary is realesing egg after egg, then your brain is sending messages that you are starting your period again. I would hazzard a guess though that it is more about menopause or pre menopause! Pre Menopause is starting earlier and earlier. Mine started about 33/34 I had a partial hysterctomy at 36 becaues of the bleeding and pain. That is why God HAS to be a man!!! ;-) XD You doctor will have to do a blood test, to see if you are indeed in the stages of menopause, and an ultrasound of your ovaries, just to make sure there are not cysts. I think you need to increase your iron intake, as it sounds like your loosing a heck of a lot of blood, and you could start feeling light headed or nauseaus. I wish you health and an answer to this question. You need some intervention with it though. Or stocks in Feminine Products XD ;-) - Just trying to make you feel better!!!

my menstrual cycle is not regular .....it also happend to me before.i experienced heavy bleeding for more than 3 weeks and there are time alot of blood clots coming out a size of table tennis ball,.....i learned through researching that i should exercise regularly for proper blood circulation,i also took multivitamins...and without any scientific explanation i also drink fresh milk every morning and before going to bed...believe it or not the bleeding stopped..... the next month i did not have my mens.... but after that it became regular :-D