@BeyondtheRainbow, the testing definitely seems like a good idea. My sister and I are thinking of doing something similar for screening for biliary tract cancers, since our mom died from one and our brother is fighting one now. We have no idea where it came from, though.

I hope your test results don't show any vulnerabilities. I read that actress Angelina Jolie's did and she did go through with the surgeries you mentioned. Apparently her mother died from breast and ovarian cancers.