Need help with Emergency Surgery and Recovery

My Dog Sirius recently was taken to the emergency animal hospital due to excessive Vomiting and Diarrhea. The vets have not been able to identify the problem and therefore he must go back to the vet because he turns away from food and does nothing but lay on the couch. I would never ask this of anyone, but we need help. In the 2 weeks since he has been sick we have paid almost $2000 dollars in Vet visits. We are asking for donations to help pay for what we hope is his last visit to the doctor, and for the bills at home we are now unable to pay in order to make sure our Boy is a healthy and happy dog. Sirius is a sweet boy who deserves a chance at life, we rescued him from the shelter 2 years ago and he is only 3. I thank every one of you who takes the time to read this, and with or without your  donations, I hope nothing but the best for all of you.