Diarrhea and chills are fairly common when youre sick, and usually resolve quickly.
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1.
Food Poisoning
Diarrhea and chills are commonfood poisoningsymptoms.

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You may have food poisoning if your symptoms come on suddenly or if you developdiarrhea after eating.
Other symptoms of food poisoning are:
2.
The stomach flu is a virus that causes inflammation in your gut.
That leads to symptoms that come on suddenly, including:
3.
Rotavirus
Rotavirusis another viral cause of stomach flu.
Adults can get rotavirus too, though its generally mild.
Infections
Many infections can cause diarrhea and chills.
Chronic Gastrointestinal Conditions
Diarrhea is a common symptom of chronic GI disorders, likeirritable bowel syndromeorceliac disease.
Is Diarrhea Contagious?
Many causes ofdiarrhea are contagious.
If you have diarrhea or chills, wash your hands frequently.
When to Contact a Healthcare Provider
The biggest risk with diarrhea is dehydration.
Summary
Centers for Disease Control and Prevention.Food poisoning symptoms.
MedlinePlus.Gastroenteritis (stomach flu).
Centers for Disease Control and Prevention.Symptoms of COVID-19.
Centers for Disease Control and Prevention.About rotavirus.
National Institute of Diabetes and Digestive and Kidney Diseases.Symptoms and causes of diarrhea.
National Institute of Diabetes and Digestive and Kidney Diseases.Symptoms & causes of diverticular diseases.
National Institute of Diabetes and Digestive and Kidney Diseases.Treatment for diarrhea.
U.S. National Library of Medicine.Label: Pepto-Bismolbismuth subsalicylate kit.
Food and Drug Administration.IMODIUM.
Hodges K, Gill R.Infectious diarrhea: Cellular and molecular mechanisms.Gut Microbes.
2010;1(1):421. doi:10.4161/gmic.1.1.11036