It's not completely true that pre-existing conditions are exempt from coverage. Many state laws have changed recently and now require Health Insurance companies to cover you for any pre-existing conditions. Check your state options and what insurance companies in your state offer.

But, this ISN'T a pre-existing condition because you HAVE NOT been treated for it yet. Go get insurance. At your age it will only probably cost about $90 a month for decent coverage.

And it's probably not a heart attack...not at your age. Go get insurance and then get it checked out.