Food Safety Report: Mountain Mike's Pizza, West Olive Avenue, Merced, CA, USA 1 year ago • details 27 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Headache Suspected source: Pizza Onset: 4 to 12 hours Duration: 12 to 24 hours Additional information: I'm sore ribs hurt headache