Food Safety Report: McDonald's, South Wadsworth Boulevard, Littleton, CO, USA 2 years ago • details 14 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills, Headache Suspected source: Fries and chicken nuggets Onset: 4 to 12 hours Duration: 12 to 24 hours