I had them too. Removed late last year. Crossing my fingers that they don't return anytime soon, but doubt I'll be that lucky. I do know how awful they can be. At least I think I do. I have a endo, adeno, IC, fibroids, adhesions, and myofascial pain syndrome in the pelvis and abdomen too, so I honestly can't tell what is causing what symptoms anymore. There's so much overlap. It's a problem. I do know that having my polyps removed during another uterine procedure helped some. They can be very painful and definitely cause bleeding issues.
Can you maybe get a blood test to see if you're anemic? At least then you'll know if you need more iron. I know that simple supplement has made a world of difference for me in the past. Course, before you take it, you want a doctor to check your counts, but still...
I have to go to embarrassingly extreme measures at times because of these issues and sometimes seriously believe they are destroying my life, so I truly feel for you. It's awful having women's health problems because it can be so hard telling people in your everyday life. So often its awkward and people don't even understand if you try. It can feel isolating. I'm sorry you're going through this, sister. Hope it gets better for you soon.