Took my poor little Maltese to have her teeth cleaned yesterday. She has had a horrible hacking cough that contorts her whole body ever since I brought her home, kind of like she is try to expell something. Called the vet, he said not to worry. At one this morning called an emergency vet, he said not to worry. We've been up all night with her all night and it's no better. She is able to drink a little water, very little, has had no food since day before yesterday. I am very concerned as well as very tired. Does...