IF (and I stress _IF_) you had symptoms of a nasty, can't-get-your-ass-out-of-bed flu, including high fever, extreme fatigue, non-itchy rash concetrated on the upper torso, easily recognizable, generalized swelling of the lymph nodes in the neck, underarm, and groin, AND
you had diarrhea
, I MIGHT be inclined to think that the diarrhea
was related to seroconversion illness.
This doesn't appear to be your case.