ooo, yeah, i've had an IV once because of dehydration. that had to of been the nastiest stomach bug i ever caught. i felt like shit for 3 full days even though the "sick" part of it was over in less than 8 hours.
keep pumping water. hard to do, especially if you can't hold it down. i was told to add some gatoraide to keep electrolytes up. dunno if that's true or not, but i did it anyway.