Bacon Cheeseburger Illness - Five Guys,

Bacon cheeseburger with onions and mushrooms, mayo and A1. Approximately 12 hours later, classic symptoms of diarrhea starts, followed by vomiting every hour for 8 hours. Severe headache and flank pain (not muscle-abdominal, though that was present too from all the vomit) persist for about 36 hours. | Symptoms: Diarrhea, Nausea, Headache