I began Arimidex , aka Anastrazole post masec/chemo/rad and stayed on 4 1/2 yrs . Slight increase in Osteoporosis , no other side effects , not a big deal , just not effective when the cancer metastisized into lymph , pleural lung area and 1 bone lesion . So , the damn cancer mutates and outran it , as with many / most all treatments . No hair loss , tons of long curly hair after it being straight all my life . Weird , right , but so common . We call it "curly chemo hair " among my BC friends . You'll be fine , and best of luck to all of us ! PJS