You may have had an anxiety
attack. However, if you do not suffer with these, your symptoms may be due to an episode of paroxysmal tachycardia
. This is when the heart beats inappropriately fast. One of the commonest causes of this is caffeine. It can also be caused by abnormal electrical pathways in the heart. Therefore, I would suggest a visit to your doctor to discuss these symptoms. There are various tests that can be done to diagnose this problem and treatment is available.
Dr K A Pottinger