Heart arrhythmias may not cause any signs or symptoms. A doctor may notice the irregular heartbeat when examining you for another health reason. In general, signs and symptoms of arrhythmias may include:  A fluttering in the chest A racing heartbeat (tachycardia) A slow heartbeat (bradycardia) Chest pain Shortness of breath  Other symptoms may include:  Anxiety Fatigue Lightheadedness or dizziness Sweating Fainting (syncope) or near fainting 
heart arrhythmias may cause signs symptoms  doctor may notice irregular heartbeat examining health reason  general  signs symptoms arrhythmias may include:  fluttering chest racing heartbeat (tachycardia) slow heartbeat (bradycardia) chest pain shortness breath  symptoms may include:  anxiety fatigue lightheadedness dizziness sweating fainting (syncope) near fainting 
heart arrhythmia