I take anastrozole at night too. It helps sleeping through some of the side effect. Hot flashes , pain in joints, and sometimes mood changes. In the morning I’m a little stiff but after walking around and taking a shower it’s helps a lot. I have been on this for almost 2 years. Started Aug of 2022. It’s a wonderful medicine if you can stick with it. I do seem to find that people with high estrogen and Pr seems to do better with the side effects. I was 58 post menopause. Stage 2 with 1 sentinel lymph node positive. Would love to hear if anyone has the same and how they are doing