Food Safety Report: Five Guys Cardiff City Centre, Caroline Street, St. Mary's St, Cardiff, UK 3 years ago • details 77 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills Suspected source: their burger Onset: Approximately 40 minutes Duration: 48 hours Sick: 1