Food Safety Report: Burger King, 2840 W North Ave, Chicago, IL 60647, USA 2 years ago • details 48 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Stomach Pain, Cramps, Chills, Headache Suspected source: onion rings. Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me