Food Safety Report: Firehouse Subs South Blvd., South Boulevard, Charlotte, NC, USA 3 years ago • details 19 Comments Comment Suspected food poisoning. Symptoms: Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills Suspected source: Meatball sub Onset: 4 to 12 hours Duration: Several days Sick: A loved one Additional information: Became… See more