Food Safety Report: Burger King, Countryside Plaza, Countryside, IL 60525, USA 4 weeks ago • details 17 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills Suspected source: Not sure Onset: Less than 4 hours Duration: 4 to 12 hours Sick: Me