Tragic ER Visit

My 5 month old puppy attended a dog meetup event with my other dog and his breeder's dogs and families. He was having a great time meeting people and dogs, and eventually took a nap in my lap. When he woke up, he was crying and I took him to some grass . He vomited and started wobbling and collapsed. I took him to Med Vet Akron, where numerous tests had to be performed and where I had to leave him. The next morning, I called and found out he had passed away. Devastated is the only way I can describe this. Unfortunately, the financial cost was also unexpected and large. Any help is VERY much appreciated.