I have to say, i'm definitely *not* a neurotic dog owner, which seems to be rare these days. Yes, if they seem off I worry, yes I spend time researching anything that is wrong, health wise with any of them, but I don't obsess and certainly don't rush to the vet over every little thing. All of us have days where we feel fantastic, days where we feel lousy and tired, but most are in the middle, hopefully more on the side of fantastic. I'm lucky to have a pretty healthy bunch, even as some of the pugs age they're doing well and seem spunkier than dogs half their age.
Many of my dogs have never had any type of prescription medication other than heart worm and flea and tick prevention. They see vets regularly, get their teeth cleaned as needed and we take care of anything that comes up promptly, but I just don't think it does anyone any good to rush to the vet constantly. It's stressful for the dogs, they end being loaded with pain meds and antibiotics that are likely not needed, it's just like people. The ones I know who are at the doctor for every little thing seem like they're constantly sick. My biggest focus with my dogs has always been about giving them a great, full quality of life. Lots of time playing and hiking, things to do to keep them mentally active and feeding them to the best of my ability.