So usually when people get sick with vomiting and/or diarrhea, they usually jump to the conclusion that they have the flu. However . . . it may actually be norovirus, which isn't talked about very much.
The flu is a virus that affects the respiratory system (but can also include vomiting and diarrhea too) and has sudden onset of fever. Where the norovirus affects the stomach and intestines and has sudden onset of nausea, vomiting, and/or diarrhea (and can have low-grade fever). It can be confusing to tell which virus you have.
Here is a link that shows all the differences between the two. My kids were recently sick, and before I had seen this information, I would have said they had the flu. But after seeing this, I definitely would say they had the norovirus. Know you will know too.
**Update; I just was sent this amazing information from the pediatrician's office where my kids go. It has fabulous information about this subject, even more detail along with suggestions for keeping the rest of the family from getting sick. Check it out here.