I am 69, IDC (4 mm) and DCIS (2.5 inches) with SMX, negative lymph nodes, clear margins, negtive genetics. No Oncotype DX done because size of IDC was less than 5 mm. I am on anastrozole 1 mg for 2 months now. I have a lot of aches and joint pain (esp knees) and extreme fatigue by mid afternoon. The fatigue and joint pain are affecting my quality of life as i like to be busy but really can not go after a certain time of day. i am hesitant to switch drugs because if they all lower estrogen levels, i assume i will feel the same fatigue and muscle aches and joint pain. But i am tempted to cut the pill in half or take 1 mg every other day. I excercise regularly, take tart cherry juice etc. But the lousy feeling (fatigue, pain, aches) are discouraging to me and make me feel as though i am 'sick' when i should be focusing on being healed. What to do??