My dog always nods. What's wrong with it?

Landlord! This is probably the sequela of canine distemper ~ this disease had better be treated quickly! Canine distemper broke out, but injections and infusions in the hospital became more and more severe. At one time, there was a stomach twitch and a "nod"! Cough (after coughing a few times in a low voice, I have a cough and feel that I can't cough up phlegm). I have a runny nose and a lot of chewing gum, but I'm in good spirits and have a big appetite (which makes my owner paralyzed and thinks it's cold weather or bathing that makes my dog catch a cold). It is best to go to the hospital for treatment.