So sorry Caroline, to read your news. 😞
I know you'll be shocked and scared, but hardly more than you were when you didn't know and were imagining the worst anyway.
I suspect you are having the mastectomy as you have several lumps? Or am I misremembering? I had a mastectomy as a second surgery, as the lumpectomy didn't get it all in my case. They will probably take a whole bunch of lymph nodes too and examine them all for signs of cancer. Then they can tell you exactly how many are involved, and some more detailed pathology.
The CT is normal at this stage, or after surgery, to look for any further spread, ie metastases or secondaries. Here's everything crossed that comes back clear. They may also do a bone scan for the same reason, and a MUGA heart scan to check your heart is healthy prior to chemotherapy.
I also have a female surgeon, oncologist and radiation oncologist. I have just been to a breast cancer supportive care centre to help me through some mental stuff, and spent an hour with another lovely lady doctor! My hematologist is a guy, but he's ok too! 😉
I am so pleased to hear you are going on your holiday and going to be with friends! You might not be as carefree as if you had not had this sucky news, but it beats the heck out of sitting at home on your own, waiting for something to happen!!!
Keep in contact. We're all in this together now. It's a white-knuckle rollercoaster of a ride for sure. But there's ups as well as downs on a rollercoaster you know! It's when it turns you upside down you have to hang onto your hat!!! 😉
Big hug sweetie xxx