Food Safety Report: Tokyo Sushi, Rua de Alexandre Herculano, Porto, Portugal 1 year ago • details 7 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: Chinese buffet, tuna sandwich Onset: Not sure Duration: 12 to 24 hours Sick: Me