What is a stomach flu? I have no idea before until it strikes my daughters. Out of the blue, Edda started to throw out one night. We thought it was a one time thing, cleaned her up and put her to bed. Then, the next morning the same thing happened again. Whatever she ate, out it came, even my breast milk! So, the next day we made an appointment and brought her to see her pediatrician. Then, the pediatrician explained it was a stomach flu, it was a virus that has been going around. Asked me not to give her milk, ice-cream and greasy food. Just something light and mostly water or Gatorade, just let her body cleaned or cleared itself. So, I mainly gave her fluid the next day and no vomit from her. The following day, she started to show interest in food again so I gave her a little here and there and watched what happen. Well, it turned into diarrhea, so she had been diarrhea the whole day. On the third day, she was back to her normal self again. And then it was her sister turns to throw out. Luckily we knew the pattern already, so only fluid for Evy the next day and she did well, no vomit. The following day, she started eating and she diarrhea the whole day and on the third day, she had recovered. I guess I got infected as well because I too got diarrhea for a day and felt like vomiting the next. This stomach virus flu is indeed infectious and messy (as in cleaning after your little ones). Too bad I have no idea how to prevent it, washing hands all the times?