I brought my 12-year-old cat into the vet today. He hasn’t been eating or drinking a lot so they decided to hydrate him. Since I brought him home, his breathing has been shallow and he is coughing a lot. I am seriously concerned. I don’t hear much air moving in his chest. I have no idea what may have caused this. What a bummer on the back of hydration caused him to not be able to breathe? The fluid is already disbursed throughout his body, so I thought he would be feeling better by now. I know that this has helped to park him up before. Please help