The word came back late Thursday afternoon. Salmonellosis is caused from the bacteria called salmonella. That could have came from tainted tomatoes, someone not washing their hands, bad meat...We may never know.
The treatment is antibiotics (which last night didn't seem to be doing the trick yet). I'm hoping another day of treatment and I'll be able to eat a bit more normally.
But it's a relief to know what the heck I've got.