I’m so sorry to hear all this I’m 72 and this anastrozole drug has changed my life. I don’t have the energy I used along with all of the joint pain you mentioned memory loss. Etc🙏🏻 I promised, I would take this pill until my next bone, scan and mammogram, and then make a decision after that whether to change your medication or go off altogether. Lots of decisions to make not fair this age.🤗