Food Safety Report: Five Guys Nice Iconic, Avenue Thiers, Nice, France 1 year ago • details 22 Comments Comment Suspicion of food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Stomach Pain, Cramps, Chills, Headaches Suspected source: Five Guys Onset: 4 to 12 hours Duration: Several days Sick: Me Additional information: No