Ignorance isn't bliss when it comes to your health, amigo. Get a primary care doc you like, get a blood test every now and then. If not for your sake then do it for the crews you fly.
FWIW where I am the difference is around $50 1st vs 2nd with ekg. If that's the only time you see the doc, get it. If you start going to a primary I'd skip it. I'd much rather get something found at my primary than my flight doc.