I have an 11 year old mini schnauzer/yorkie mix. He develope diabetes about 3 years back and went blind from it 2 years ago. This past week, however, he's been seemingly deteoriating quickly? He's always gotten anxious from fireworks/thunder/smoke alarms but now he's anxious near constantly and for no discernible reason. He'll tremble and pant for hours at a time when there's nothing we can see that's triggering it. Do you have any ideas on why he's acting like this, or how we should help him?
Sometimes panting can mean a dog is in pain. I would take him to the vet.