I have a history of anxiety. Lately I have been have a lot of stress at work and for some reason have been concerned about my heart, but also my anxiety level has increased. I noticed my heart beats quicker in the am. Anxiety medication does not seem to relieve the symptoms for long. I don't know what to do. I am a 54 year old female and have always been healthy. I had a full stress test 1 1/2 years ago and everything was normal.