Food Safety Report: Kung Pao Chicken, Zumbehl Commons, Zumbehl Road, St Charles, MO, USA 2 years ago • details 12 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Chills, Headache Suspected source: Kung Pao Chicken Onset: 4 to 12 hours Duration: 12 to 24 hours