Duck, unfortunately a hysterectomy for endometriosis is very different from a simple hysterectomy. While anyone with prior pelvic surgery will have potential issues with adhesions to other pelvic organs, endometriosis ups the ante many times. This is because you not only have the adhesions from prior surgery, you have the arduous task of removing endometrial lining that has entered the pelvic and abdominal cavity, and adhering to your intestines, bladder, abdominal walls, etc.. This tissue bleeds every month, causing pain and possibly more adhesions. Even after menopause or with hormonal control, the adhesions and endometrial tissue can still be causing pain.
But, some risks are worth taking. You have to be able to live your life.
I'm glad your GYN will be having a GI surgeon on hand! Best of luck to you!
Jan