BTW, the heart is hard wired to the brain and vice versa. Often times palpitations will create anxiety before you even know you're having them in people that have never had anxiety issues before. Vagal afferents. It is not always anxiety that drive them. Large meals and reflux can also irritate the vagal nerve and the esophagus sits against the left atrium. When its pissed off, so is the left atrium. Hiatal hernias have been know to trip off V-tach bc of pressure and inflammation.