Just realised I posted a response on your other similar post in the questions to nurses section!
I am having an isotope bone scan this week after a few months of back pain. The GP referred me because of my history of primary breast cancer 11 years ago - WLE, FEC, Rafa and 5 years of Tamoxifen. I am going mad thinking the worst. I don’t know how to get through the waiting time without getting hysterical.