Thanks for your question on Healthcare Magic.
I can understand your concern.
By your history and description, possibility of
stress and
anxiety related symptoms is more in your case.
But better to rule out heart diseases like
arrhythmia (rhythm disturbances in heart) first.
So get done ecg, 2d echo and Holter monitoring (24 hours continuous recording of ecg).
If all these are normal then no need to worry for heart diseases.
You are improving with alprazolam (anxiolytic) drug. Only drugs are not important in stress, anxiety.
Counselling is very important.
So
consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on it's solution.
Don't worry, you will be alright with counselling sessions and alprazolam.
Avoid stress and tension, be relax and calm.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.