What did I mean by "fairly healthy"?

I'm just back from dropping Tony off for his surgery, and it occurred to me as I was driving that I'd used the phrase "fairly healthy" about him as if everyone would know what that meant. Tony was given to me as a gift, and he was a pet store puppy. Now that's something that many people should understand. I never met his breeder or his parents, and I don't know the medical history for his "family." For all I know, he's a puppy mill dog. So, in his case, when I say he's "fairly healthy," I mean that he doesn't have an outrageous number of problems, considering his age. He has some issues that are bothersome besides the diabetes: developing cataracts, allergies, a collapsed trachea, and soft teeth (the last two are common in Pomeranians).

Additionally, a couple of years ago when I took him in for a dental cleaning, he had a bad reaction to the anesthesia they used. This time they're using a different anesthetic, but they are worried about the trachea problem. I felt very guilty leaving him there; I know I'm doing the right thing, but I felt like a traitor!