I need your opinion here at YT. Has anyone had these symptoms? This morning my Tyler 5 years old was doing fine. He had his normal dry food that he always has. Then my daughter called me mid-morning and said he was acting weird like he had trouble vomiting but he did not vomit. So I came home and he was weak, but still eating, he did have enough energy to go outside to do his business, his stool and urine seemed normal. But then I noticed that he was breathing heavily but we came inside and he ate. He seemed to have like a gagging sound when he tried to swallow but this only happened once. My Vet closes early on Wed. so I am taking him in tomorrow or tonight if he gets worse. I've been all over the internet the only thing I can think is upper respitory infection although he is not coughing or has a runny nose. I am worried sick. He is just very sleepy and looks sick. I just said the magic words " treat time" and he did get up to get his treat but he seems very weak. Should I be worried