Tamoxifen did a number on me. I ended up with cysts on my ovaries and heavy heavy bleeding. I needed to have a hysterectomy in order to stay on it. Then I went on raloxifene which caused bone issues combined with early menopause from the hysterectomy. I did get 15 years breast cancer free, but it came back last year and I decided to have a double mastectomy. No medication is without side effects. Radiation has long term side effects, It’s not an easy choice, deciding between the lesser of two evils. But you make the choice and move on. No easy answers.