Dear meandmsjones,
I read through your email and had to respond as I had the very same diagnosis and was asking myself all of the questions you are asking yourself.
I had no real bleeding just a blood tinged tissue on occasion but I followed up with my gyn and had an ultrasound which showed a uterine polyp. The uterine polyp was removed which came back with no abnormal cells but the random biopsies came back with Complex endometrial hyperplasia with atypia (endometrial intraepithelial neoplasia, EIN).
I had the surgery as it was highly encouraged by the gyn/onc surgeon.
During the surgery the tissue looked good and the entire uterus, tubes and ovaries came out in one piece. My husband had encouraging news. However on the pathology report I had + lymph nodes and > 50% myometrial invasion.

I am now receiving my first chemotherapy. It is just one story but I think you should have the surgery. The earlier the better. All the best to you! I hope your are among the 60% without cancer. Blessings!