Thanks for your question on Healthcare Magic.
I can understand your concern.
In my opinion, we should definitely rule out heart diseases for your symptoms.
So get done blood pressure monitoring, ecg, 2d echo and stress test
(trade mill test).
If all these are normal then no need to worry for heart diseases.
Sometimes undiagnosed stress and anxiety
can also cause similar symptoms.
So consult psychiatrist
and get done counselling
Try to identify stressor in your life and start working on its solution.
You may need anxiolytic drugs too.
Don't worry, you will be alright with all these.
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.