Hi Dhage. Thanks for your query and for using health care magic
You mention that you have chest pain
and breathing problem
Your ECG and ECHO are normal.
There is no significant cough
Your symptoms are mainly related to deep thinking.
It appears that your symptoms are related to your thinking and its a psychological problem.
This can be related to stress
and tensions too.
You need to consult a physician/psychiatrist
for further evaluation of your symptoms and appropriate treatment.
Wish you good health.
Thanks and Regards,