Food Safety Report: Quaker Oats Oatmeal, Walmart Supercenter, Lejune Drive, Springfield, IL, USA 7 months ago • details 8 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills, Headache Suspected source: Oatmeal Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me