Symptoms
Often they may be noticed simply because the individual is hyper-aware of the heart’s rhythm. An ectopic (extra) beat may be "amplified" into a distinct thump in the chest if the individual is tired or sensitized by alcohol. However, in case of symptoms such as chest pain, perspiration or disorientation, prompt medical attention is indicated.
Dizziness and sometimes fainting may accompany supraventricular tachycardia (SVT). Ventricular tachycardia may cause the individual to feel faint or experience chest pain or loss of breath.
