Well, this morning I saw Nurse Practitioner Po Hu, who listened to my symptoms, listened to my lungs, shined lights into pretty much anything that could have a light shined into it, and declared "Your asthma is all up in your face. Here, suck on this vaporizer for 20 minutes, and I'll prescribe you some steroids. They'll fix you up ... although they might make you jittery and irritable."
Well, given that I've been jittery and irritable, I guess I've got nothing to lose. Apparently the late-onset con crud from FC gave my asthma the excuse it needed, and then once it was rolling, it became self-sustaining. "I'm irritated and inflamed! Which irritates and inflames me! Yay!"