Food Safety Report: Culver's, Farrell Road, Lockport, IL, USA 2 years ago • details 10 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Chills Suspected source: fast food Onset: 4 to 12 hours Duration: Several days Additional information: Over 24 hours and still sick. My wife and I both are sick