Food Safety Report: Billy's Inn, Lowell Boulevard, Denver, CO, USA 4 months ago • details Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: Tacos with a side of beans Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me