When was the last time you had any lab work done? Do you really want to chalk it up to nothing? Granted you remember when I spent 11 hours in the ER only to have a doctor inject motrin into my IV (pericarditus) but its better knowing **** than drop dead later cause you had something else you could prevent.
I'm half asleep so I may be misunderstanding but it almost sounds like you're saying a heart attack doesn't cause pain in you're heart. If that is indeed what you're saying let me be the first to politely say "Bull****ing****".