Food Safety Report: Walmart Supercenter, East 2nd Street, Reno, NV, USA 2 years ago • details 50 Comments Comment Suspected food poisoning. Symptoms: Nausea, Vomiting, Stomach Pain, Chills Suspected source: Pasta Shells Onset: 4 to 12 hours Duration: 12 to 24 hours Additional information: The food tasted fine, but hours later, my symptoms began.