The final straw for me to NOT act was that I had no radiating pain. No pain in face, jaw, arms, etc. I took an aspirin and went back to bed. The next day, I went to the doctor and the EKG looked fine.
The whole thing was stress-related. Two newborn twins in the NICU may do that to you. What was interesting to me was that these symptoms showed up several days after their birth and after any initial scares were over. By the time I had these stress pains, the babies were eating from bottles, gaining weight and were functioning as they should in room air.
The scary part to me was realizing that heart attacks aren't like they are on TV or the movies, where the pain is so intense that the person collapses. I'm very thankful that I didn't have a heart attack, but I learned a lot more about them from that stress spell.