Why is my dog wheezing, barking hoarsely, and panting raspy?

It is hard to say the exact cause of her breathing. I would be concerned about a possible upper respiratory infection, pneumonia, heart disease, heartworm disease or pain. I would recommend taking her to a veterinarian for a good listen to her chest and possible chest x-rays.

It could be allergies. Without hearing or examining him, it is difficult to determine definitively. Other causes may include respiratory infection or inflammation, collapsing trachea, heart disease, trauma or foreign body. If symptoms persist, have him examined by your veterinarian.

Sorry to hear that Bruno's lost his bark. A change in barking sound or a loss of bark can be associated with a few different conditions. While a collapsing trachea or an upper respiratory infection are certain possibilities, they are not the most common cause for this symptom. There is a condition known as laryngeal paralysis that is known to cause this symptom quite frequently. Regardless of what the cause is, it is unlikely to resolve on its own without some treatment. You should take Bruno into the vet for a physical exam and some diagnostic imaging. They will be able to tell you whether or not one of the above mentioned conditions is causing Bruno's current issues. Hope this helps!

This could have various causes, the most common one would be an infection with kennel cough which can cause excessive coughing which in turn can make the dog hoarse and so diminish her bark. There are more serious causes such as laryngeal paralysis, a vocal chord swelling or tumor and other conditions that make it hard for the vocal chords to vibrate and make the correct sound. mechanical interference such as an ingested and stuck foxtail, piece of bone , etc. which can cause an abscess in that region. Trauma and nerve damage, hypothyroidism and autoimmune conditions can also change the bark. So, you can see that this is a complicated subject. Your vet is trained to properly examine your dog and diagnose your dog's condition. Depending on the cause, medications may be indicated, rest, or surgery (in case of a tumor or abscess). An appointment with your vet will be the best.

This is not normal, especially for a young, athletic dog. I would recommend he be evaluated by a veterinarian and potentially have chest radiographs performed. Wheezing and a cough can be caused by upper/lower airway diseases or even heart disease so it is important to rule those problems out.

That may be due to a nerve degeneration that can happen in large breeds of dogs like Great Danes or Labradors. The nerve involved is commonly the laryngeal nerve and other long nerves as well (sciatic). I would recommend a check up to confirm or rule out this clinical suspicion and treat appropriately.

It's hard to say, but if there is concern about something being stuck in the throat, I would have Bruno examined by a vet ASAP. Sometimes infections that cause kennel cough can cause these symptoms, but it is safer to rule out a possible foreign body or blockage first.