I'm not worried about tamoxifen because I've already had five years of it from 2002 - 2007 when I had my first bout of bc. This time around I'm having femara. My oncologist said I couldn't take tamoxifen for another five years anyway. I remember not wanting to start on the tamoxifen back in '02 for the same reasons as you. I was scared of it. This time around, I'm not so scared anymore. I've been through chemo twice, radiation once, surgeries and tamoxifen. Femara should be ok after all of that! Thanks for the tip about the calcium and vitamin D. I'll definitely get onto those too. xx Jane