Bud,
DO NOT BECOME A STATISTIC!

GO SEE A CARDIOLOGIST!
You need a specialist. They'll know what to do. You should have a treadmill or drug-induced thalium stress test to be sure. YOU......by the way are getting little messages from your heart; don't wait till the ticker says, "well, I was trying to tell you"
SERIOUSLY, statistically, most men wait....and wait....and wait on the little pain. When my L arm started to ache...and 2 minutes later, then my jaw.....I was outta the freakin' house....dial 911 if you're not close to the ER. I am.....and I'm proud to say the Camaro fired-up and my son cut a .400 light out the driveway!
Take my word for it....thinking about dying is not fun....