2. Rapid or Irregular Heartbeat
There are many reasons why your heart may begin to beat faster than what is normal for you, such as exercise, high blood pressure, or even heart disease, but it can also be a symptom that a blood clot has formed. In the case that it is a blood clot, the body will try to do what it can to get rid of it as it gets bigger. By doing so, vital organs including the heart must take on more work which will in turn lead to an increased heart rate due to more blood being pumped throughout the body.
An irregular heartbeat can be a symptom that shows when the clot has moved from the leg and is on the move within the body. This will most likely be accompanied by other warning signs such as chest pains and difficulty in breathing. In any event, if you are experiencing a rapid heartbeat that does not go away you should see a doctor.