February 2018 Monthly, Weekly and Daily Validated Holidays, Calendar, and Observances.
When to see a doctor. Arrhythmias may cause you to feel premature or extra heartbeats, or you may feel that your heart is racing or beating too slowly. Other signs and symptoms may be related to your heart not pumping effectively due to the fast or slow heartbeat. These include shortness of breath, weakness, dizziness, lightheadedness, fainting or near fainting, and chest pain or discomfort.
1 You may also fear that your heart could burst or suddenly stop beating because it is beating or pounding unusually hard.  This symptom can be accompanied with other symptoms, such as racing heart or fast heart rate, âskipped beats,â heart âflutters,â chest pressure, or shooting pains in the chest.