Food Safety Report: Walmart Supercenter, Highway 1 West, Iowa City, IA, USA 3 years ago • details 11 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Headache Suspected source: The pizza I bought at here(Iowa city, IA) Onset: I ate it at around 7 PM yesterday,… See more