Food Safety Report: Cheerios, Prescott Valley, AZ, USA 1 year ago • details 22 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps, Headache Suspected source: Cheerios Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: 2 people Additional information: It was the only food we both ate