Food Safety Report: Culver’s, Genoa Way, Castle Rock, CO, USA 1 year ago • details 33 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps Suspected source: Cheese Curds, Chicken Strips, Cheeseburger Onset: 4 to 12 hours Duration: 12 to 24 hours