Food Safety Report: Five Guys St. Paul's, Saint Paul's Churchyard, London, United Kingdom 11 months ago • details 522 Comments Comment Suspicion of food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills Suspected source: Intoxication Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: 3 people Additional information: No