Mason with medical costs

Hi my name is Lisset, I’m fundraising for my Shih Tzu Masón. Mason suddenly started coughing and wasn’t feeling and breathing well. I brought him to the emergency clinic in the middle of the night and they found fluid in his lungs and heart. Mason has been with me for 12 years and has been the healthiest puppy you’ve ever seen. Medical cost is piling up as he had to stay in the hospital until he can breathe better and fluid is out. I appreciate your help in advance!!