Food Safety Report: Subway, Ray Avenue, Fitchburg, MA, USA 1 year ago • details 15 Comments Comment Suspected food poisoning. Symptoms: Vomiting, Fever, Cramps, Chills, other: Gas Suspected source: Subway Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: Me Additional information: I only threw up a little bit