Food Safety Report: Baladi Shawarma, Sage Hill Plaza Northwest, Calgary, AB, Canada 2 years ago • details 20 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, other: Sulfur Burps Suspected source: Shawarma Onset: 4 to 12 hours Duration: 4 to 12 hours Sick: Me Additional information: May be Norovirus?