Food Safety Report: Five Guys Oxford Circus, Argyll Street, London, UK 2 years ago • details 119 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: Food poison Onset: 12 to 24 hours Duration: Several days Sick: 4 people