Question:
my dog is coughing,gaging alot lately,,he has been doing it for a while,,but just recently he started doing it louder....he seems to get this way when he is up and moving,,,then when he lays down,it seems to get better after he has laid down for a while..It seems like he gets excited or anxious and then starts this,,,,he is an older dog.....

Answer:
Maybe it is asthma or bronchitis.

Have you been to the vet?

Answer:
Coughing is also a sign of heart problems...is he tested for HW every year? How is his health otherwise?

Could also be something real simple like Luba says, he should probably visit your vet for a look-see.

Answer: