Symptoms of palpitations include feelings that your heart is skipping a beat, fluttering, or beating too hard or fast. You may feel these sensations in your throat, neck or chest. Palpitations may be a sign of a serious heart problem if you also feel dizzy or confused; are lightheaded, think you may faint, or do faint; have trouble breathing; have pain, pressure, or tightness in your chest, jaw or arm; feel short of breath; or have unusual sweating.
Your doctor may have already told you that your palpitations are harmless. However, if they become very noticeable or bothersome, you should see your doctor again. You also should see your doctor if they get worse, begin to happen more often, or occur with other symptoms.
IMPORTANT: Call 911 if your heart palpitations occur with chest pain, fainting, severe shortness of breath, or severe dizziness.