Welcome to healthcare Magic!
One important suggestion for you is that you should get a medical attention as soon as possible and get investigated. You should get a CBC, RFT, ECHO, ECG, xray chest stat.
There are many serious differential diagnoses possible including pneumonia
, hypertrophic cardiomyopathy
, cardiac arrhythmias, valvular disorders.
It can be a manifestation of excessive anxiety
as well but the serious possibilities must be ruled out first.
Wish you a great health!