TNBC & uterine issue

Lifestooshort

Hi,

So I've recently had a PET scan/MRI and **YAYYYY*** brain, liver, lung, chest has either shrinkage or gone!!! YEAHHHH.  A lesion showed up on my lower spine   and something in the female area.  So after a pelvic ultrasound they tell me the lining is 3x what it should be.  I go to a gyn next week.  Since we're TN, i.e. ER,-  PR-, never Tamoxifin, never HRT, can this be anything to worry about?  Haven't had a period since 2006 after first go around wtih chemo.  In fact I was almost going to start begging for some estrogen.

If this turns out to be anything, this is what's going to put me right on over the edge.  Have any of you had experience with this and being TN?

Thanks in advance....