i took arimedex, then femora and now have started tamoxifen. I have severe joint and bone pain that the first doc said was't a side effect. I went to another doc(well known onocologist) and he said it is a side effect of these medicines. Now i am looking at the other questions about these meds and it makes me really angry that the other doc was telling me it was all in my head and so many people are experiencing the same thing. .