Howie Kitty Needs Help

On Saturday, my 8 month old kitten, Thurston Howell The Third, aka Howie, began throwing up. We initially thought it was a one and done, and left for the morning. When we came home, we realized that he was throwing up again/ still. He was urinating at this point, so we tried him on some water to see how it stayed down. It came right back up. This made 3 times in just about an hour, so we were concerned. So we took him to the vet emergency center. The did an Xray and blood work. They didn’t see anything blocking him or anything he could’ve eaten. However, his kidney enzymes were extremely high, in fact, one of the levels would not even register. It was so high. The doctor asked if maybe he could have gotten an ibuprofen somehow, but he is not wanting to usually eat random things.