Spontaneous lung collapse. (Pneumothorax, it's called.)
It's a thing, apparently.
Trust me when I say that it surprised me more than it is surprising you guys.
Don't know when I'll get back to this. Hopefully after they close back up my chest. Turns out that my "Sickness" was a symptom of working out of a single lung.
Did you know this story is from Royal Road? Read the official version for free and support the author.
I live in a world of pain currently.
I'll be back someday! (Not TOO far in the future, but not too soon.)