tornado,Hello and welcome to HealingWell. I am sorry to read of your chronic problem, however, at some point, we have to trust our doctors and what they tell us,--especially when we see multiple docs and hear the same thing.
Besides seeing the cardiologists have you had a regular medical screening exam with your primary care physician?
Anxiety is another diagnosis that brings with it way to many symptoms to list here but I will post a link for you to look at:
Anxiety Symptoms, Anxiety Attack Symptoms (Panic Attack Symptoms), Symptoms of Anxiety:
http://www.anxietycentre.com/anxiety-symptoms.shtml
Kindly,
Kitt