Another Biopsy in Two Weeks

I have been on Tamoxifen for 3.5 years.  Only another 1.5 years and I'm off...finally!  However, one of the side effects has been an overgrowth of the uterine endometrial lining. A year ago, I had a pelvic sonogram due to this, and it was recommended that I have a biopsy since it is not uncommon to get uterine cancer from this.  About six weeks ago, I had another sonogram, because of lower abdominal pain. It showed that the lining was even thicker than it was a year ago.  Again, the Gyn feels I need another biopsy. It's the only way to know that I am healthy.  I hope that this will be the last one...it was quite painful the last time.  Only two weeks to angst over this...

Update: Biopsy was negative. YAAAAAAAAAAAAYYYY!!!