Margaret. I'm so incredibly sorry for your scare. I hope someone can help you understand more.
* I was just diagnosed yesterday with PALB2 Gene.
I have a friend that's a Genetic Counselor, I'd definitely start researching for one in your area. The GC will discuss your scary news. And outline potential paths to consider in order to beat your diagnosis with incredibly high success %'s.
And personally- PLEASE do not deal with this alone, it's devastating news, it'll help to talk to your friends and family xox
Wishing you well,