Hi and sorry you are ill. There is no such thing as "stomach
flu" meaning the influenza virus
does not cause flu in the stomach
. It is considered gastroenteritis. The symptoms of diarrhea, vomiting, low grade fever
up to 100 degrees and possible cramps are caused by many things, virus
or bacterial. However, the most common cause is a virus
. It is spead from person to person by fecal oral contamination.