My 12 year old boxer 'Chopper' is having some health issues, losing weight, not wanting to eat dog food, constant panting when he's up and around and now he's started gagging to the point of not being able to breathe. Last night he had a bout of gagging then went to bed and slept peacefully through the night. Started gagging again this AM so we're headed to the vet again. I took him to the vet on Tuesday and all his blood tests were normal. In 2011 we had his enlarged thyroid removed and it was cancerous. I'm hoping the cancer hasn't resurfaced in his throat for a couple of reasons, one I don't want him to have cancer and two, he can't stand anymore surgeries. After his last surgery I was off work for two weeks treating his eyes with antibiotics to save them from the damage the anesthesia did to them. I know his time is short and I want to make the rest of his life as enjoyable as possible so this morning I fed him a bowl of dog treats for breakfast.