Broken ribs whilst asleep?

tasha_111

3 months ago I started my 3rd battle with breast cancer, it had gone to the bones.  Onco put me on Xeloda and pemidronate.  Last Friday I went to bed to sweat it out as normal and woke up in Saturday morning in bloody agony with a broken rib.  Beginning to think this treatment isn't working that well.  Any thoughts??