Hi lovesflorida
As with so many things (including any HRT) you tend to only hear the horror stories. If I mentioned I was on HRT there would always be people exclaiming in horror that I would get breast cancer. The Mirena is recommended for many women as it can be ideal. I ended up with one after trying many HRT pills and found it the best option. It may be worth giving it a go as it could calm your bleeding down and then if you need to use some oestrogen you don't need to take any extra progesterone. You also don't need to worry about contraception either, which can be a bonus.
If you don't like it, you can always have it removed - then if your only option is a hysterectomy (which is, after all, a major operation and should only be done as a last resort) at least you've tried all other options. DG x