I presume by palpitation
you mean missed (extra) beats? / There are many other events, people loosely call palpitation
100 extra beats in 24 hours are NORMAL - it occurs practically in everybody!
What the mind does not know, the eyes do not see - you may be a bit nervous! Learn to ignore them.
If they are very troublesome - disturbing routine life style - your cardiologist can do more tests...