i am experiencing palpitations, chest pain and shortness of breath even if i m resting, i also have difficulty in breathing specially during asleep i feel like im drowning, i had my 2d echo with doppler , ecg, and holter test but its normal. what could be the problem?
If all your results pertaining to cardiac are normal. Then you might be getting all these symptoms because of anxiety? Other reason is low HE also. Have you checked your HE levels?