as per usual, the headache went away with a long, hot shower. further, the air seems to have moistened up nicely, to the point that i'm no longer coughing. migraine averted? let's hope so.
so, i'm very confident that i understand the causes, and i know how to react.
i just wish i didn't have to; i wish the air would just stay moist enough that it's not triggering me.
i got another clean of the fan in, and i just have to hope it turns back on once it's dried out. it's one of those grey ge/honeywell type affairs that you can clean via water pressure in the tub. they're constructed well, but they have proprietary screws, so they're hard to clean. if i can't get this to work and have to buy another, i'm going to make sure i get something i can take apart to clean.
i keep saying i'm going to clean this space up, then rant all night. but, if i can avoid the headache, that's the plan.