Hi Funkilala,
Like you, I am new to all of this having been diagnosed with Breast Cancer only last month. I've only just got access to this forum and it's been a lifeline for me - thanks so much everyone for all your posts to date!
Before my operation (I had a mastectomy two weeks ago), I have to laugh now at the number of versions of my condition I had so as to deal with different people and prepare them as the tests became more and more serious: version for my children, my boss, friends, close friends, elderly parents, siblings and of course the "true"version for my wonderful hubby!
Looking back, I have been exhausting myself trying to protect everyone and have been spending all my energy reassuring everyone that I am going to be fine and coping very well. In fact, now I've admitted to my close family/friends I have had to had a mastectomy (can't feel I can hide that fact!) I have been able to actually come to terms better with the whole situation myself and feel "unburdened". My kids have been brilliant (son 14yrs, daughter 11yrs). So, I've said to myself, if my hubby and kids can deal with it, hopefully so should everyone else! A close friend said that I should at least tell the people in my life who can help with the situation as they can provide support etc so I've done this. However, I quite understand it's a personal decision which only you can best decide.
Finally, part of me also feels that we may wish to be "ambassadors to the cause" and if someone hears that I have BC, and it makes them check themselves, tell their wives, mothers etc, then there's a lot of good that can come out of all this after all..
Best of luck with your treatment everyone x