24hr holter showed many skipped beats and early/xtra beats.what are these called? i feel heart pause,then sudden hard fast beat, very irreg n repeats

Premature beats: They are simply called "premature beats" as they occur earlier than expected. They originate either from the upper chamber (atrium) and termed premature atrial beats PAC or from the lower chamber(ventricle) called premature ventricular beats (PVC) . In both cases following the premature beats ,there is a pause and the first beat usually feels strong or hard. Check with MD They are often benign