I have had a mastectomy following chemo. I have just had a meeting with the surgeon and have been told I must take Anastrozole for 10 years. I am also going to have at least 5 rounds of radiotherapy. Having been through so much already I don't know if I can bear any more side effects. Surely if I am having regular checks I will know if cancer has returned and it can be treated then? I am 68 years old.