Hello,
I’m sorry to hear about the situation with your dog. It also sounds like you did everything right in seeking care. I cannot interpret blood work findings as these always need to be done with an examination to make sense. But my suspicion is that the episode triggered a massive adrenaline response and he also suffered the consequences of this and pulling hard on a leash. Hopefully this will be a singular episode but I do think it’s time to seek a positive reinforcement trainer and learn some basic obedience skills. And try a gentle leader or even some mild anxiety medication for the training period.
I hope he continues to improve
Keep us posted






Hello,
I think that it is best to quell your concerns by seeing your vet. The heartworm should have been resolved with the treatment you were given. But your dog should still be on heartworm preventatives.
I also think that you should follow up with whomever did the surgery for you. It might be post op tracheal inflammation.