Fear can be so debilitating. When I was having episodes of A-fib, I lived in fear for 5 years. Didn't let my wife out of my sight. A catheter ablation cured my A-fib, but the old fear comes back when I have too many PACs/PVCs, because it feels too much like A-fib. I think it's a fearful thing because it is, after all, your heart. I think you can ask your doctor about a catheter ablation if 20% of your heartbeats are PACs. It helps to know that PACs are largely benign. I get relief from fear largely through spiritual means.