Unlike exposure to other toxins, many Agent Orange symptoms tend to take several years to decades to present, and can cause a host of health issues. Initial symptoms tend to include common side effects found with many other illnesses, as well as neurological and psychological problems.
Heavy breathing or panting. Most dogs will pant from time to time because they are stressed or excited, but when dogs pant for no apparent reason and the panting becomes excessive, this can definitely be a sign that a dog is experiencing pain.
If your vet tells you that he or she believes heavy panting is caused by pain, you should leave the clinic with a plan to relieve the pain, which may include drugs, acupuncture, laser and/or physical therapy, and home modifications to help your pet.