I answered "yes" as well. But you failed to specify which bodily substance(s).
I believe I have ingested my feces while chewing my fingernails. I have a vague memory of the unpleasant realization.
I drank a bit of my own piss once quite deliberately. I was reading Brian Eno's published journals, in which he says something like this: "Was watching Monty Python. Realized I'd never tasted my own piss. Drank a bit."
I ingested a bit of my own semen after seeing a character do the same in a Gregg Araki movie.