After about day 4 in this chemo cycle, I noticed lower back and leg pain very similar to the pain I had from the bone mets before treatment. Of course much less intense, but I start freaking out inside whenever I feel any pain that remotely resembles bone met pain. My first thought is "OH SHIT! Is that from the chemo, or is that the cancer rearing its ugly head?" I think I had a little on the last cycle too, but it went away after the first week. I'm on day 8 now and it seems quite a bit less than a few days ago. I'm not really sure if it's bones, joints or muscles. It's still below the level of needing pain meds, but there all the same and quite unnerving at times. Does anyone else on chemo get this?