Norovirus, also called stomach flu or 24-hour bug, is a highly contagious virus that can cause severe diarrhea and vomiting. There are 20 million cases of norovirus each year in the US and it is ...

Persistent vomiting and diarrhea may also cause severe dehydration and malnutrition, which may be life threatening. In people with diabetes, gastroparesis may cause severe blood sugar fluctuations.

"Kelly, I want to address your throwing up and your diarrhea," the Dead to Me actress said on Tuesday's episode of her MeSsy podcast with Jamie-Lynn Sigler. Applegate began to divulge details of her ...