I have been on tamoxifen for 18 mo and started noticing bottom of foot pain which has now progressed to really bad L heel pain in last 4 mo. I am 51, a runner for over 8 years with never, ever anything like this before tamoxifen. It doesn't hurt during runs because I don't heel strike, but walking around all other times, it is intermittent from low grade to O.M.G. I see a physical therapist regularly for self care on running and there is nothing wrong, injury- wise. So, I guess you could say that I finally figured out that it must be the tamoxifen and Googled it--I mean, if a known side effect is bone pain and joint pain, well--here ya go. Lots of women post breast cancer on meds having the same problem. Just saw my onc and she had no idea, but I'm sharing all of this with her now. Thanks so much, everyone, for the validation!
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