When you're sick, don't pull an all-nighter unless you can't possibly avoid it.
I finally went to bed yesterday afternoon. I woke up and went to a 24 hour CVS for various things, ate something and went back to bed. My fever finally broke around 8AM (I could tell because I woke up lucid, albeit groggy), and after another eight hours of sleep, I'm back to where I was when I wrote the previous entry.
I'm guessing it'll be at least another day or two before I'm reasonably recovered, which is unfortunate because I have another deadline that I'm now very behind on, and, for reasons that I won't go into, I really didn't want to have to work over the weekend, even before I got sick.
I think I'm going to sit in front of the TV and wait for my meds to kick in, because writing code is much more interesting when you're on medication.