I had the cheeseburger with grilled onions and fries. After an hour of eating as I was driving around an intense pain began in my stomach and back and feeling of wanting to vomit arose. Also an urge to use the restroom. When I drove all the way home I layed down and 5 mins later I had to run to the bathroom to vomit everything up. I felt better but I didn't get all the vomit out and knew this pain would come again hours later and it did.