Food Safety Report: McDonald's, Nairn Avenue, Winnipeg, MB, Canada 2 years ago • details 10 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills, Headache Suspected source: mcdonald’s Onset: Less than 4 hours Duration: 4 to 12 hours Sick: 2 people