Yes, do go to the emergency room if you can drive, or have someone drive you. Otherwise call 911. I had a silent heart attack
in my 30's, so minor pain could indicate one too. At the hospital a blood test
will reveal certain elevated enzymes if you're having a heart attack. Don't take any chances. I felt silly calling 911, but otherwise would have died, because I had to be defibrillated. Better safe than sorry, so please go!