Food Safety Report: Sandwiches, Walmart Supercenter, North Highway, Colville, WA, USA 2 years ago • details 7 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills, Headache Suspected source: Walmart bought egg salad sandwich and chicken salad sandwich Onset: Less than 4 hours Duration: 4 to… See more