got Jardia once, think it was from drinking water from a stream when i and a few mates went hiking. Worts shits i ever had in my life, went on for days so went to the doc then to the hospital, They put you on this sort wagon wheel after youve drunk some kind of chalk fluid. then shove a tube up your arse and blow you up like a bike tube so they can xray you.
Funny thing was the doc did say. "you might get a bit of wind"
FFS i was back in the changing room and had that ooooeeerrr feeling and thought, well may as well have some fun. So stood by the door and let out this fart which was like some sort of small nuclear explosion
must have gone on for about a minute
just about tattered my ring.