2. The Telltale Symptoms of Gastroenteritis
Symptoms of the stomach flu often mimic those of food poisoning, with fatigue, muscle aches and pains, chills, stomach cramps, vomiting, diarrhea, and high fever. However, stomach flu is most often caused by a virus or bacterial infection in the digestive tract rather than from consuming bad food or water (i.e., listeria).
A prime differentiation between stomach flu and food poisoning is symptom presentation. For instance, stomach flu symptoms start a few days following exposure to the virus and typically last between 2 to 10 days. Symptoms of food poisoning, however, flare up within hours of eating contaminated food with vomiting and nausea lasting between 1 and 10 days, until the body rids the food bacteria completely from your system.