[JayStavis]

TIL. I was semi-hoping someone would fill in the gap! At the same time I'm wondering why the heck my doctor won't tell me these things.

[sbierwagen]

The average doctor does not have an encyclopedic knowledge of all human disease, and if they do, they are discouraged from using it: https://en.wikipedia.org/wiki/Zebra_(medicine)

[samplatt]

Doctors only know what they've been taught or experienced. You'd hope specialists would know these things, but even they miss things and forget things. And GP's? fuggeddaboutit