So I have an old dog, he's almost 14, Jack Russell terrier, and he wasn't doing too bad, I spent $3200 on his teeth last year he was in decent shape, a few days ago he got stung by a wasp on one ear, it's swelled up. It's not going down I will take him to the vet, but he's been getting hard of hearing, seems now he can't hear anything, I call him he doesn't even look at me. I am a bit worried about him, maybe he's getting close to the time, you guys know. Any advice would be great.