Well, fuck. :((((( Did the dr. discuss embolization for the big fibroid? If his only response is that it's inoperable, I'd recommend getting a second opinion. But if that's truly the case and you only have the two options of hysterectomy vs. HBC, I'd take the hysterectomy, given your history.

Granted, I've had one, I didn't need my uterus, and it was riddled with cancer, so I just wanted the fucking thing out, so maybe take this with a grain of salt.