Thanks so much for your replies Anita, Meadow and Tiberius. I am so glad that I posted. I'm feeling a bit better before I have even acted on any of the suggestions made by the lovely mumsnetters here. I only slept a few hours last night and woke up feeling so sick and shaky. I feel a bit calmer now.
Anita - I think sleeping tablets would help me so much. I was diagnosed on Christmas Eve and have started to feel such dread about each night as it approaches. If I knew I wasn't going to be lying there alone with my darkest thoughts for hours it would be such a relief.
Meadow, Gail, Stuck, Shining, Tiberius, Pippa - I feel so comforted to hear about your experiences. I am so scared that I won't be here for my family as my children grow up. I feel as though I've let my husband down. Our lives are already so stressful. I am sorry that you lost your Mum, Shining, but how wonderful that you had so many good years with her. It especially helps to hear this as at this point, without knowing more, my worst fears are around it being found to be stage 4.
Lemon - I will join the support thread and try to google less! I'm a person that researches everything to the nth degree so have spent the last few days on a rollercoaster of google induced emotions. I am going to put down my laptop in a minute and try to spend the day doing some of the nice things I had planned to do with my family over Christmas.
Anna - I will call Breast Cancer Now. I had only visited the forum so far and ended up scaring myself reading about fears of long term recurrence with lobular cancer. I found a really useful thread about MRIs and claustrophobia though which is something that had been worrying me.
Stuck, Flippity - Thanks so much for your hypnosis/mindfullness/meditation suggestions. I hadn't thought of this yet and I think that will help me so much. Before this, I could often use an audiobook to get myself to sleep but was trying to find something the other night and having lost all my hope for the future nothing felt right. I ended up listening to a children's podcast of stories about greek mythology.
Tiberius - I am thinking similarly to tell them something before I go in for surgery. I'm still not sure if I'll tell them it's cancer. I want to spare them the distress of thinking I might die soon. Although they are still all very matter of fact about death at the moment. Thanks too for the practical advice. We're already running into practical issues around not having much of a support network.
Pippa - I am hoping to share your stoic and practical outlook when I am through these particularly dark and scary days. I've been trying not to drift into thinking about this as a battle to the death with something! I am usually a very straight thinking logically person but as I'm looking at the stats on this I can't stop the thoughts telling me that I'll be one of the unlucky ones - and I can't find the stats that I want to see which would tell me that I can still have the long life I expected to have until 11:30 on Christmas Eve.