Why Does My Heart Beat Irregularly?

Most of the time, they're caused by stress and anxiety, or because you've had too much caffeine, nicotine, or alcohol. They can also happen when you're pregnant. In rare cases, palpitations can be a sign of a more serious heart condition. If you have heart palpitations, see your doctor.

How serious is an irregular heart beat?

Dr.

In many cases, these irregular heartbeats are harmless and will resolve on their own. But when they occur persistently, they can be serious. When your heart's rhythm is disrupted, it isn't pumping oxygenated blood efficiently, which can cause harm to the heart and the rest of the body.

When should I be worried about an irregular heartbeat?

Go immediately if you have additional symptoms with your irregular heartbeat or you've had a heart attack or other heart stress. According to Dr. Hummel, those symptoms include fainting, dizziness, chest pain, swelling in your leg or shortness of breath.