Food Safety Report: Tuna Sandwich, Regina, SK, Canada 2 years ago • details 34 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: tuna sandwich Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me