We went for a family lunch as we were shopping. My partner had a double cheeseburger and I a burger in a bowl. The kids had fries and hotdog. I felt queasy about an hour after. When.we got home.i had to.go to bed as I felt sick. My partner then threw up all night for approximately 36 hours. It's the only thing we can put our fingers on that it was the beef as my kids were fine. We used to be regular visitors when in York but after 3 days we still aren't right. Stomach cramps and nauseous not great.