For some unknown reason Fletcher has become MR. BARKHEAD lately. He barks at the TV, people walking by our fence, randomly at night Tonight I checked out his ears really good (just looking) and they appear same as always. Nothing has changed in the house or with his routine. I'm wondering if I should rule out something medical with my regular vet? I have been working with him to re-direct (train) away from all the barking. I have NO problem with Fletcher barking while playing.

Just a reminder, Fletcher is a year and a half old. No medical issue thus far. I have NO medical history on his parents.