Food Safety Report: Culver’s, 24th Avenue, Fort Gratiot Township, MI, USA 9 months ago • details Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills Suspected source: Walleye at Culver's Onset: 4 to 12 hours Duration: 12 to 24 hours Additional information: Still feeling tired a couple days later.