Now, when ventricular ectopics (extrasystoles) are proven with ECG holter monitoring, you need to find out the reason for their occurrence.

Ventricular extrasystoles can occur in people with completely normal hearts but are more commonly found in those with structural heart disease. In themselves, they do not cause any problems. Usually, ventricular extrasystoles have no significance but rarely, they may induce ventricular fibrillation and can be associated with sudden cardiac death. However, they can also be a feature of certain cardiac disease. They are the commonest type of arrhythmia that occurs after myocardial infarction. They may also occur in severe left ventricular hypertrophy, hypertrophic cardiomyopathy and congestive cardiac failure.

These investigations should be done to evaluate the ventricular extrasystoles:
1. 12 lead ECG: The extrasystoles will only be picked up if they are occurring at the time that the ECG is performed.
2. Ambulatory ECG monitoring: It is more likely that ambulatory ECG monitoring will pick up the extrasystoles.
3. Echocardiography: This provides information about ventricular function and heart structure and can detect valvular and other abnormalities.
4. Electrolyte levels: Including potassium, calcium and magnesium.
5. Thyroid function tests: Hyperthyroidism should be treated if detected.
6. Exercise stress testing: This may be needed if ischaemic heart disease is suspected or there is an exercise-induced arrhythmia.

You could consult a cardiologist about your problem.