I’m 45 years old and female, 5’4”, 190lbs. About a year ago, I began to be able to see my pulse just above the notch of my collarbone. When I cough, the lower portion of my neck puffs out. Seeing my pulse seems to getting more pronounced. I’ve been diagnosed with tachycardia, premature ventricular contractions, and I have a small patent foreman ovale. Any ideas why I can see my pulse so pronounced?