I too had a bone scan and ct scan 5 days after my lumpectomy but the breast care nurse said it was usually requested so the doctors knew exactly what was happening and there were no surprises. After the ct scan I was sent to have an ultrasound on my liver but not told why, apparently all was ok. But I was petrified they’d found something else. During the bone scan I was asked if I’ve ever had an operation on my nose (no) and they did an extra one on it. I haven’t found out what that was all about. Asked the surgeon, he had no idea. For the bone scan I had to put my arms behind my head and I moved my fingers every time the machine moved.
Good luck on Monday xx