Feeling slightly better. This might be because I've been awake a total of one hour so far today (and if you know how little I usually sleep, you know this is very, very weird.) Still have a handful of things to get done, as I'm laboring under the assumption that I will be all healthy tomorrow and will be able to go on my trip. Of course, I haven't technically eaten anything but a few saltines and a little applesauce in the past twenty-four hours. But hey! If I keep that up a couple more days, instant weight-loss program!
[EDIT: OK, managed to eat real food a few hours ago, and haven't felt significantly ill for a few hours now. Fingers crossed. (6:07 pm)]