Hello all, welcome Pennies, I've been out all day or I'd have responded sooner. I had a mastectomy, and lymph node clearout, 18 months ago. Like you I went through a CT scan and that is hard, but I tried to look on it as something positive, there to help me and get me the treatment I needed. Anyway I was diagnosed with grade 3, and told it was very aggressive, but I've had chemo, and radiotherapy, and am now on herceptin and tamoxifen.
Its a long haul, but it's do-able, you will get into your own treatment routine, and everyone is here to support you if you need us. If there's any questions at all you'd like to ask about mastectomy and the after effects or something else I can help with, please just ask.
I don't think its denial to protect yourself. Use your instinct to tell you how much information you want to handle at any given time. I was scared like you ,- found it hard to take everything in, and there were some things I didn't want to know about.
I would advise in these early days to go with the flow, as much as possible. Be very kind and gentle with yourself. There's nothing wrong with a good cry - its a normal reaction to an extra-ordinary circumstance. And its a terrible cliche, but one step at a time, deal with each stage as it comes, don't try to deal with the big picture all at once. I know other people's stories are largely irrelevant, everyone's 'journey' is unique to them. But it definitely helps to have company along the way
take care and un-mumsnet-like xx