I can totally relate to the anxiety. I had a ventricular Tachycardia incident 4 years ago and had to get a defibrillator implanted. This past Easter i had another incident with my implant needing to shock me 6 times. I was afraid to go to sleep for fear of not waking up. I was off work for over 3 months. I've been back to work 4 weeks but feel myself slipping back. I freeze up when I feel the pvc's. Trying to make myself relax. I wish you and everyone else the best of health