Thanks for your question on Health Care Magic.
I can I can understand your concern.
Since your ecg and 2d echo are normal, no need to worry for heart diseases.
Uncontrolled stress and anxiety can cause
tachycardia and
shortness of breath.
So better to
consult psychiatrist and get done counselling sessions and
relaxation techniques.
Try to identify stressor in your life and start working on its solution.
Nebistar is nebivolol. It is
beta blocker. It is used as anti anxiety drug.
Along with this, counselling and relaxation techniques play very important role in control of stress and anxiety.
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.