Food Safety Report: Tombstone Supreme Frozen Pizza, Walmart Supercenter, 26502 Towne Centre Dr, Foothill Ranch, California, USA 2 years ago • details 37 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Chills Suspected source: tombstone supreme frozen pizza Onset: 12 to 24 hours Duration: 12 to 24 hours