my stomach has been feeling terrible since the last week of my trip. it got better (it would cramp up so bad, i couldn't buckle the waistbelt of my pack - carrying 60 pounds on my shoulders...) but some days were good, some i couldn't eat....so i finally went to the doctor.

i have giardia.

don't drink the water...damn.

i know a few people who have gotten it backpacking, but thought, nah, we were treating all our water. i attributed it at first to the altitude, which normally affects me. but, obviously, i wasn't careful enough. icky icky icky. i certainly will be more cautious in the future.