I’m 2 years after treatment. Did have chemo and radiation so difficult to know what caused what. I know the chemo caused a lot of fatigue coupled with the radiation to follow. I felt I was doing ell at about the 1 year mark but was then changed from Anastrazole to exemestane and while the joint nd muscle pain is gone, the fatigue is massive. I’m one of those that never “naps’ even as a child. Now, if I don’t lay down (not even sleep, just rest), late afternoon, I’m practically non functional by about 7pm. This is a body fatigue, not sleepy. While it could easily be. Cumulative effect, I do blame a lot on the exemestane.