I'm worried out of my mind right now, and fearing I am going to die any moment, I'm overcome with fear and want to cry. I have a history of heart palpitations and anxiety, had 2 ecgs 2 years ago, and they were fine. Got my anxiety under control, and palpitations stopped. They've come back and seem more worrisome and are scaring me. They are heavier, faster, and more irregular. Does anyone have experience of palpitations like this due to anxiety? I have been anxious this week, but I can't tell what came first, the anxiety or the palpitations.