I’ve never tried this, but advice I’ve seen online is if your doctor won’t order testing, ask them to note in your chart that they are declining testing. Apparently the implicit threat of a lawsuit if they’re wrong is enough to kick at least some of them into CYA mode.

On that note, why would they decline tests in the first place? You’re the one paying.

Yeah, great question, I don’t understand it either, but marginalized groups like women or people of color can have a hell of a time getting medical professionals to take their concerns seriously. Maybe it’s just a hubris thing. “How dare this person question my judgment when I’m the doctor?”