Food Safety Report: McDonald's, 2359 Ness Ave, Winnipeg, MB R3J 1A5, Canada 2 years ago • details 4 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain, Chills, Headache Suspected source: shamrock shake Onset: 4 to 12 hours Duration: Less than 4 hours Sick: 2 people