Food Safety Report: Pizza Hut Alliston, Victoria Street West, Alliston, ON, Canada 1 year ago • details 8 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Headache Suspected source: Food Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: Me Additional information: Very nauseous and violent vomitting