Food Safety Report: Subway, 6421 North Beach Street, Fort Worth, TX, USA 2 years ago • details 11 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Chills Suspected source: Subway sandwich Onset: 12 to 24 hours Duration: 4 to 12 hours Sick: Me Additional information: Throwing up and diarrhea