I have been so anxious and panicked ever since my brother died 2 years ago. It was a sudden cardiac related death. I had my own cardiac incident 12 years ago and know I must not be fully mentally recovered from it. I have been to the ER twice and have been told my heart is fine. Anxiety is the problem and I have been prescribed Zoloft, too soon to tell if it will help shut down my chattering brain and stop the palpitations. I think I could feel better if I wasn’t so aware of every heartbeat. Any ideas of how to do that?