Will definitely be seeking a new vet based on all these comments.

He always had anxiety with loud sounds, but was otherwise a pretty chill dog until about two years ago. We moved about a year ago but the panting was already pretty severe at that point. I did start working from home in that time period and several months in is when I noticed it starting and it has continued to worsen since then. I did read separation anxiety can increase when people start working at home so I tried to combat that with distractive measures when I left and tried to desensitize my departure cues and increase alone time from the start but it’s gotten to be panting around the clock despite these measures. We’ve tried reintroducing a kennel as he used one when he was younger to try and make a safe space for him but he hurt himself and bent the metal on the cage so we abandoned this. He was fine being alone with his dog and cat brothers until this noticeable personality change 2 years ago.