Hi Amy & happy new year!
I wrote a blog early last year about a weird back pain I got a few days after infusions with Zometa. I wrote after the second one but no one had heard of such a pain. After my 3rd infusion I got the severe back pain again & after scans showed nothing nasty, I decided to stop the infusions & return to the Bondronat, which I was taking before and am taking again. It is just a slight nuisance because I can't take my Arimidex at the same time first thing in the morning & risk forgetting it, but I have absolutely no obvious side effects from the Bondronat (I do keep up my dental checks, as I would with Zometa) and have never had even a hint of that very severe back pain since stopping the infusions. I wish you every bit of health and happiness! Nellie