So JJ Abrams announced a few days ago that
the new villain Kylo Ren is NOT a Sith.
I kinda don't believe him, because this is the same guy who said Cumberbatch wasn't playing Khan, even after filming on that one had already begun....
But anyways, this got me thinking about how this character would have realized that they have the Force. Which got me thinking about midichlorians. Do only Jedi and Sith know about the midichlorians? Or do they show up on doctor scans? Are there doctors in Star Wars and do they scan for midichlorians (or even know about them)? Would they show up as some kind of weird infection or parasite? Like, "What's wrong with me, doc? I can move objects with my mind!" Doc says, "No idea, but you're covered in microscopic lice!"