Food Safety Report: Excalibur Hotel & Casino, South Las Vegas Boulevard, Las Vegas, NV, USA 2 years ago • details 256 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Cramps, Chills Suspected source: Oysters/shrimp Onset: 4 to 12 hours Duration: other: I just started feeling sick Sick: Me Additional Info:… See more