Lucyloo, I have a backwards tilting uterus too. And yes, like you I'm particularly sensitive to progesterone, the pmt is awful, isn't it?
I'll be having a ga as Mirena couldn't be inserted awake as it appears that my cervix is all but fused shut from scarring. They'll be doing a hysteroscopy and d&c at the same time.
Bleeding is not too bad - I have a good ‘period bleed', then heavy (need a pad) sopotting two weeks later. And both bleeds are as regular as clockwork, lol. I think it's fairly easy to remove the Mirena, or not as complicated as putting it in, anyway. Time will tell if it will send me bonkers like norethisterone did...
I have suspected adenomyosis, and endometriosis. And if the Mirena doesn't work, I'm opting for a hysterectomy...