Food Safety Report: Golden Corral Buffet & Grill, South Black Bob Road, Olathe, KS, USA 2 months ago • details 17 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills Suspected source: Not sure Onset: 4 to 12 hours Duration: other: Still have them Sick: Me Additional information: Vomiting after eating at the buffet.