I had pulmonary stenosis and atrial septal defect, heart murmur, heart palpitations. I had EKG done last June to make sure my heart was ok and I got good results. AT first I was worried cuz I explained to the doctor my heart would beat fast out of blue. I remember when I was growing up, my heart would beat racy and I'd hyperventilate. My doc told me it was due to stress or anxiety.
Ever since I was little, Before a dentist appointment, I'm required to take 4 HORSE antibiotic pills prior to teeth cleaning. I HATE it!!!
Good luck with your EKG. It's really neat to see the U/S on your heart!!!!