Throat Infection, Castle of the Winds 2
I have mostly recovered, except for some lingering hoarseness and fatigue. (Also, painful and intermittent headaches. Maybe I was coughing too much? I just want this crap to end.)
I managed to beat the second and final episode of Castle of the Winds. This isn't much of an accomplishment, as you can save and load at any time, but it was engaging enough to keep me occupied while ill.
The final boss was a bit of a jerk. He had the ability to teleport away when his hitpoints were critically low; by the time I caught up to him, he'd have recovered at least half his health. This happened over and over until I changed my strategy: I boosted my speed, slowed him with magic spells, dropped my shield, stopped wasting moves on healing myself, and repeatedly struck the son of a bitch with my most powerful two-handed sword.
My character had immense strength and wealth by the end. It's funny how little that matters when the final remaining task is just to turn in an item.