Could be related to my living in a dorm. I haven't been able to cook my own food for months The food here is reasonably well put together, but it's not exactly what I'm used to...might be catching up with me.
Could be psychosomatic. Lately I've been challenging myself to leave my comfort zones and confronting things I've previously had a lot of hang ups about.
I think either way, I'll try my best to eat non-irritating foods for a few weeks and see if that helps. Then go from there.
(but thanks for the input, made me actually think about what I should do about this)