It’s all about risks vs gains. I recently finished 5 years of Anastrazole and did have quite a few side effects. Most of them seem to be going away a bit at a time now after stopping meds. My friend, with breast cancer too could not take the AI due to horrible side effects involving heart problems. She had to stop and said five years ago she would just have to stay on top of testing for signs of returning cancer. So far, we both 5 years later are cancer free. I know it’s a tough decision to make. Talk to your oncologist, and get second opinions if needed. Once you make your decision, don’t second guess yourself. I do believe being positive after cancer is important to your well being. My prayers are with you.