Hi @bevvzy,
Have you had a look at our Understanding Breast Cancer publication? That might have some of the answers that you have been seeking.
You can download it in either PDF or EPUB format - EPUB is great for devices such as a Kindle
If you wish a hard copy sent out, just send me a private message and I'll arrange that for you 
In addition to seeking support here from your peers, I am suggesting you contact 13 11 20 as well, it's a free service with lots of health professionals who can give a proper definition or even just be a sounding board for you. You can call them as often or as little as you want, between the hours of 9-5 and I can attest that the entire team are absolutely lovely to talk to
