I can't comment on chemo as I'm still waiting to find out what treatment I may have but as to the other stuff... I told immediate family and 2 key friends, asking them to tell other people. I've since started a blog which has served the purpose of providing updates to people, and also to bleurchh (yes, I've decided that's a word) my feelings about what is happening to me. My husband also told people that he works with in the community. I've had nothing but offers of support and respect for my needing to bunker down with this. My kids are 11, 12 & 15. They've always done housework chores but they've taken on lots of other responsibilities since I had surgery, including cooking Christmas dinner. I've had to let go of MY way of doing things a bit. I've also told them that I will be completely honest with them about what is happening to me although I may not always share the what-ifs. I think that taking on household responsibilities, although not always done with a smile, allows them to feel that they are contributing.
Originally, I thought that I would go back to work as soon as term started but my GP insists that I don't as she says to concentrate on my physical and emotional health. As reluctant as I am, and knowing that it will be very difficult financially, I'm coming around to the belief that she is right.
Look after yourself, @Spillsy. You need to focus on getting through.