Food Safety Report: Walmart Supercenter, Tampa Road, Oldsmar, Florida, USA 11 months ago • details 316 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps Suspected source: Stoffers Mac and Cheese Onset: 1 to 2 days Duration: Several days Additional information: October 26 and 27th