Food Safety Report: Jaffa Grill House, Symons Valley Parkway Northwest, Calgary, AB, Canada 3 years ago • details 7 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Cramps, Chills, Headache Suspected source: Shawarma Onset: 24 hours Duration: 24 hours Sick: 2