The symptoms (to all) can be similar at first. Yours happen rather fast and may have been from something you did before the trip if you rule out food poisoning from the canned chow!

Just a quick hip shot here but it sounds like the symptoms my fellow instructors had when they contracted Giardia up in WA State. Check out the fact sheet from the CDC. You can also research other possibilities on the same site.

http://www.cdc.gov/ncidod/dpd/parasites/giardiasis/factsht_giardia.htm

I’ll assume the water you took for drinking was from a clean source, same for the ice. There are tons of possibilities depending on the area you were in

How did you wash up? Did you use the river water to brush your teeth or clean utensils?

Did flying insects have access to the canned food?

My god man, did body parts slough off <img src="/forums/images/graemlins/shocked.gif" alt="" />

Mike M