I Didn't Know There Is That Much Fluid In the Human Body

Georgia is sick. Sick sick. Diarrhea dripping down the sides of her diapers, puke flying everywhere sick. I cannot understand why she isn't just a dusty pile of bones on the floor because I had no idea that she had that much fluid available in her body. Other than the occasional "my tummy hurts," though, she seems to be doing mostly okay. She isn't lethargic or overly cranky or anything like that. We're giving her Pedialyte and just hoping for the best at this point.