I've personally had quite some experiences navigating health issues, health anxiety, the medical system, etc. Nothing terribly interesting, but, still. I'm actually in middle of scheduling tests to see if I might, in fact, have an autoimmune condition. If they do find evidence of that, then it will have taken me around 6 years to figure it out from my very first symptoms. Thanks to modern medical science, I have little reason to sweat over it, though. (Of course, I'm still hoping for a negative, but at least in the case of a positive I can have the relief of knowing what the hell was wrong with me all this time.)