Food Safety Report: Costco, Winnipeg, MB, Canada 2 years ago • details 116 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Vomiting, Stomach Pain, Cramps, Headache Suspected source: frozen poke salmon, Raw salmon Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: Me Additional information: I'm pregnant