Food Safety Report: First Watch, 603 Potomac Station Dr, Leesburg, VA 20176, USA 2 years ago • details 21 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Fever, Stomach Pain, Chills Suspected source: Sunny Seoul hash Onset: Less than 4 hours Duration: 12 to 24 hours Sick: 2 people