Food Safety Report: McDonald's, 3045 Pembina Hwy, Winnipeg, MB, Canada 2 years ago • details 3 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain, Cramps Suspected source: Mcdonalds chocolate milkshake Onset: Less than 4 hours Duration: 12 to 24 hours Sick: 2 people Additional information: one person also with nausea