Thanks for your question on Healthcare Magic.
I can understand your concern.
In my opinion, we should rule out
arrhythmia (rhythm disturbances in heart) first because arrhythmia can precipitate in
pregnancy and gives similar symptoms like palpitations and breathlessness.
If not treated promptly, this arrhythmia can harm you as well as your developing baby.
So get done ecg, 2d echo and Holter monitoring (24 hours continuous recording of ecg).
You may need anti arrhythmia drug, on the basis of these reports.
Don't worry, you will be alright.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.