If Your Heart Is Racing, You Probably Don't Need to Worry
Many palpitations are due to a small hiccup in the heart's electrical conduction system.
By Karan Kapoor, M.D. and Erin Michos, M.D., M.H.S. |Nov. 2, 2017, at 6:00 a.m.
Got a "butterfly" sensation in your chest? It could be because you're newly in love, but it could also be because you're experiencing palpitations. Palpitations are among the most common problems encountered by internists and cardiologists alike, accounting for up to 16 percent of outpatient visits annually. Even though the cause of the majority of palpitations is benign, occasionally they can be a sign of a more serious condition that should be evaluated by your physician.
The Basics
https://health.usnews.com/health-care/for-better/articles/2017-11-02/if-your-heart-is-racing-you-probably-dont-need-to-worry
