Thanks for your question on Health Care Magic.
I can understand your concern.
By your history and description, possibility of
stress and
anxiety related symptoms is more.
But better to first get done ecg and 2d echo to rule out heart diseases because they present with similar symptoms.
So first get done ecg and 2d echo.
If both are normal than no need to worry for heart diseases.
Stress and anxiety are the causes for your symptoms.
So better to
consult psychiatrist and get done counseling sessions, try to identify stressor in your life and start working on its solution.
You may need anxiolytic drugs too.
So don't worry, you will be alright.
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.