Thanks for your question on Health Care Magic.
I can understand your concern.
Yes, you should definitely
consult cardiologist and rule out out
arrhythmia (rhythm disturbances in heart).
You are having tachycardia, sweating,
shortness of breath. All these favour arrhythmias like atrial fibrillation(AF),
atrial flutter, supra
ventricular tachycardia (SVT) more.
And all these are common in young female especially after delivery.
So better to consult cardiologist and get done ecg, 2d echo and Holter monitoring (24 hour continuous monitoring of ecg).
On the basis of reports, you will need anti arrhythmia drugs.
Don't worry, you will be alright.
Don't wait at home because if untreated these can be life threatening.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.