Hello, Heart palpitations are indicative of Arrhythmia, arrhythmia may lead to either fast or too slow heartbeats. If left untreated it may complicate to Atrial fibrillation, Flutter or Supraventricular Tachycardia (SVT). The cause is commonly hyperthyroidism, diabetes, mental stress, smoking, excess alcohol intake, etc. Pressure in the chest or squeezing crushing pain is the symptom of angina, caused due to reduced blood flow to the heart muscles. Avoid tobacco use, maintain blood cholesterol, blood sugar to the normal levels. Stop smoking, maintain a healthy diet, avoid addictions if any, alcohol & stay away from stress. Get all lipid function tests, stress test, Holter test, ECG, Echo done. Your treatment will depend upon the pathology detected. You may get treated with medications, cardioversion, ablation therapy or coronary bypass surgery. Get treated at the earliest to avoid acceleration of your symptoms. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Nupur K, General & Family Physician