I am 72, went through surgery June 2022. Then chemo because oncotype positive and then radiation, Anastrazole for 6 months but now on exemestane because of side effects to Anastrazole. So don’t know which part of the treatment caused it but I agree - I’m tired of being tired. I have NEVER been a daytime napper and now, there are days I almost fall asleep doing something. I try to walk everyday and go to the gym for strength training at least 3 days a week (trying to stay off the bone meds!). He asks at every appointment and I respond with a yes, I’m still tired, but nothing suggested to help. Then I get the comment “radiation, the gift that keeps on giving” so don’t know if it’s a combination or just the radiation that caused it. Anyway, I guess we just have to keep plugging along. If I find anything that helps, I’ll come back and post.