I'm very aware of the risks of breast cancer, as my boss, who I consider a friend and am forever grateful to for giving me a wonderful career, has now had breast cancer twice in her life, most recently just a couple months ago. So yes, get thee to the radiologist!!!
As for the male dressing room, it's no big deal to me, they get the pronouns right (even though I noticed the CD has an "M" gender marker...aaarrrrgh!
I pick my battles carefully, and this is not a problem I run into in any other area of my life. Post-op, I may decide to patronize another clinic, or just "graduate" to the female dressing room, although I kinda like the private option.