Anyone ever get sick from drinking OWS water?

I haven't gotten very sick, just nausea/icky feeling.  What I found cures that is to eat a small bagel RIGHT before the swim (the small one, or Half of a full one). Slowly eat it as you're setting up Transition and kind of make it last until you're ready to swim. I have not found this method to be too heavy on my stomach. 

Theory is if you eat it, the bagel will absorb the water, thus causing a LOT less issues. Think of it like a sponge in your stomach.

Sick from bacteria or other water borne organisms, I have not yet gotten sick. 

This thread is enough to convince me to never do an open water swim!

Yes, twice, but not seriously. Just a day or two of making sure I was within sprinting distance of a toilet. It was here in VN and I'm sure the water was contaminated to some extent. In one case the chop was pretty extreme and I took in several big mouthfuls, so not suprised. I'd just gotten over strep and had come off several days of antibiotics, so it's possible the gut issues were from the illness or antibiotics rather than the water. Also possible that the drugs in my system kept me from getting a lot sicker LOL.

But they have these races every year and no one I know has gotten seriously ill; I've also swum there (in calmer water) on vacation and not gotten ill, so not a big worry. I wouldn't advise doing OWS in a developing country, though, unless you're pretty adapted to the local microflora. Even then, you're taking a risk--if you've followed Yanti's typhoid saga, you'll know what I mean.