The hospital did multiple EKGs and blood tests, and
even an Echocardiogram, but couldn't find anything wrong. They asked if I had anxiety
but I said no. I am willing to admit now that I may have worked myself up to a panic attack that day (I was traveling to see my family, it was snowing, etc etc).
Beginning of December I finally got a primary doctor -- up until this point I hardly ever went to the doctor. She did a general check and referred me to a cardiologist.