Food Safety Report: Costco Wholesale, Day Street, Moreno Valley, CA, USA 3 years ago • details 52 Comments Comment Suspected food poisoning. Symptoms: Nausea,Stomach Pain,Cramps,Chills,Headache Suspected source: Mushrooms Onset: 2 hours Duration: 1 day Sick: 2 Additional information: I'm not sure if it was the mushrooms or we are sick.