No, I didn't have an EKG during the pain because, as I said, it stopped before we got to the ER. I am not young. I am 58. The bradycardia was as low as 40 bpm and kept setting off the alarm.
I think it's important to listen to your symptoms, but you shouldn't always fear the worst. Chest pain is really common and coronary artery spasm is not. It's extremely uncommon, far more uncommon than other CAD's.
Did you have the EKG done when you had pain? If you did, coronary artery spasm is really unlikely. How low was the bradycardia? Coronary artery spasm manifest on EKG with ST segment elevation, or in some cases depression.
Sharp throbbing pain isn't typical for heart disease. Muscle spasms, cramps and indigestion are far more common causes.
Yes, doctors can give a wrong diagnosis, but far more often they are right. Chest pain in young people is common, but only a few % of all chest pains are cardiac related. See my point?
You should stop self-diagnosing on the internet (trust me, it's no good, I've done my share of that). You can order an appointment with a cardiologist regardless of your PCP but it's a bit expensive. In my country approx NOK 4000 ($700) for a full examination with EKG, echocardiography and stress testing.
I don't think coronary artery spasms are related to heart failure.