Food Safety Report: John's Incredible Pizza - Montclair, Arrow Highway, Montclair, CA, USA 7 months ago • details 134 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: Johns Incredible Pizza Onset: Less than 4 hours Duration: Several days Sick: 2 people