I've been noticing little things here and there for a while, like when I used to call him, he'd jump up in a heartbeat and run to find me no matter where I was. Or when I'd come home, by the time I'd reach the back door, he'd already be barking because he heard the gate and garage door open. Now he doesn't bark at all until he sees the door is opened.
I stand by the back door and call him at night to go out one more time (our usual routine) and he's in at hubby's feet in the study, and he doesn't move. Then hubby (one foot away) calls him, and he doesn't move at all. When we physically move him, he looks confused.
Today I had the garage door open and he was standing at the back door barking to go in after doing his business (outside of and visually away from the garage). So I called and called him, but no response...just barking. I went out of the garage around the corner and he was facing the back door looking away from me, barking and barking. I called his name again and again 3 feet away. He never turned around, just more barking to be let in. I literally got up to him while calling him and put my hand on his rear. He jumped, startled-like.
Can vets test for deafness, and is it worth the test? Or should I just assume he has gone deaf and treat him accordingly?