I was very surprised that the treatment wasn't chemotherapy. It was hormone therapy since I was estrogen positive. A much easier route. A daily pill (Tamoxifen, and a shot in my stomache every 3 months (Zoladex). I went into early menapause which was the idea. About 4 months after starting the hormone therapy I noticed my brain fogged up. I miss my brain. If you find it, would you please send it back?