Hi friend, Welcome to Health Care Magic Feeling of ‘dropping- skipping- missed- hard- fluttering-’ beat is called ECTOPIC or premature beats / palpitation and so on. Dysrhythmia (Arrhythmia is commonly used) is the name even for abnormal but regular rhythms. THE FIRST STEP IS TO SEE A CARDIOLOGIST / Irregular heart beats need to be DOCUMENTED by ElectroCardioGram (EKG). / Standard ECG records the electrical activity of the heart, for a few seconds. It can detect the arrhythmia occurring during that time only. If the episode occurs randomly or precipitated by a specific activity like exercise, one needs Holter or event monitor Anaemia / Anxiety / Alcohol / Tobacco (smoking) / Caffeine (too much tea, coffee, cola) / Fever / Infection / Pain / Stress / Thyroid / Vitamin D, calcium, magnesium / Medicines like Phenylephrine used for ‘cold’; Salbutamol used for asthma and so on - may be responsible.... / Illicit ‘drugs’ like Amphetamine are notorious to cause abnormal beats / At times, abnormal nerve paths in the heart (bypass tracts) or disease of the conduction system may be responsible! ECHOcardiogram / TMT (Treadmill exercise ECG) / LABORATORY work-up – may all be necessary for further assessment and assistance. Take care Wishing speedy recovery God bless Good luck