Isn't that interesting? yes my cholesterol only went through the roof once I started taking Arimidex and now Im on Aromasin and the Oncologist basically said well take something for the cholesterol, really made me mad! So I believe its causing it too. You know Ive always had perfect blood pressure so it makes no sense all of a sudden it's high, so odd. I see my GP today to see latest reading on bloods and see if I have to go on BP meds uuugh!! I dont want anymore pills!!!!