Gaaah, never mind blaming my allergies, I think I'm actually kind of sick. Which is just... not acceptable. Seriously, it isn't. I have another 40 hours' worth of night shifts still ahead of me, and there isn't anybody who can easily fill in for me if I'm sick.
Sigh. This is what comes of going out and doing things and being social. You just expose yourself to other people's germs. Hermit mode is much better. How else am I going to avoid that end-of-the-world plague when it comes?