Food Safety Report: Walmart Supercenter, W N Service Rd, West Memphis, AR, USA 1 year ago • details 11 Suspected food poisoning. Symptoms: Nausea, Vomiting, Diarrhea, Headache Suspected source: Marie Callender's chicken pot pie Onset: 3 to 12 hours Duration: 8 hours Sick: A loved one | Symptoms: Nausea, Vomiting, Diarrhea, Headache