30 Photos That Can Raise Your Pulse in a blink

Ultimately, there are lots of reasons your heart may be racing.

Sometimes it’s nothing major. Other times, especially when accompanied by symptoms like feeling lightheaded or dizzy, having chest pain, or feeling fatigue, it can be a sign that you should see a doctor. “It doesn’t matter how healthy you are or how healthy you think you are,” Dr. Doshi says. “If your heart doesn’t feel right for you, it’s worth getting a checkup.”