Vet Bills for Tofu the Goldendoodle

Hi everyone, I'm fundraising for my puppy, Tofu. He's 11 months old, and has been healthy his whole life, until he started rapidly declining this past weekend. He's been going through tests and treatment for 3 days, and we still have no answers as to what's going on. Every new test to try and find out means more money, before we even know what we'll need to treat him. Anything helps! Thank you for your kindness.