Persons drinking alcohol sometimes do develop palpitation
, chest pain and fainting attacks; this usually occurs because of abnormality in heart rate
after drinking alcohol most commonly - Atrial Fibrillation
(Holiday Heart Syndrome
) & Supraventricular Tachycardia(SVT), these arrythmias originate above ventricles. You have to consult your cardiologist for proper checkup and treatment. Also avoid ALCOHOL drinking & Smoking.