I found that initially I felt that ever cell in my body lost its energy. Now I have reached a plateau where I lead an active life but am usually tired.
I am on tamoxifen again, for another 5 years. I could not tolerate the aromatase inhibitors so much pain, one made me feel like I was jumping out of my skin, and had pain. the other worse pain. both times interestingly my blood sugar increased. I put up with a lot and understand how important they are I just couldn't tolerate them.