Can the common cold affect your ability to think clearly?

I’ve noticed that usually when my body gets sick, my mind gets kinda fuzzy, too. I don’t usually take medication, so I doubt the fuzziness is tylenol-related. It just takes a little longer to process information, and I forget things easily.

I’m sick now, and in my class today, I kept saying things that made my students look at me in an odd way. I think that at one point, I referenced my weird cousin John for no reason at all. Uuuuhhhh.

Am I imagining this?