@Raich, hi ....I am/was like you, and quite private about who I told.
When I was diagnosed, It was like I had to go internally to concentrate on my treatment and come to terms with everything. As another survivor explained to me, you have to go on this misadventure ( I hate the word journey ) on your own anyway. Now I’m a year on, and found myself openly sharing my diagnosis with an acquaintance the other day! Surprised myself!
You do you. You must protect yourself and your mental health. This is your story, and you tell whomever you want!
Good luck with everything :)
Caz xxx