
What Causes Random Acceleration Of Heartrate?

Please, get consulted and do an ECG!
Detailed Answer:
Hi and thank you so much for this query.
Considering all the informal you have provided, it would be important to understand exactly what is going on. This could represent an abnormal heartbeat pattern or may represent normal physiological changes related to fear and anxiety. An EKG would be able to tell if there is a problem or not. As it is not constant, If an EKG fails to provide a conclusive answer, you may be asked to wear a monitor that continuously records your heart activity for over a time interval for later analysis.
I will recommend you start with a primary care physician. Depending on the finding on examination and an EKG, he may choose to send you to a cardiologist if that is necessary.
I hope this helps. I wish you well. Thanks so much for using or services and do feel free to ask for more information and clarifications if need be.

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