My Bella is now about 12 weeks old. When we first got her, she made an occasional cough/gagging noise. I was told it was a typical "yorkie noise". Now she had a 2nd set of vaccine shots, and she has been making this sound all the time!! If she were a cat I would swear she was coughing up a fur ball!! Has anyone ever experienced that with their pup? Could it be kennel cough??