Food Safety Report: Culver\'s, Nicollet Avenue, Bloomington, MN, USA 1 year ago • details Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills, Headache Suspected source: Culvers hamburger Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me Additional information: Not able to keep anything down