Are heart palpitations hereditary?

I have been having palpitations or skipped beats about 3 to 4 times a day, noticed them about 2 years ago. most of my aunts and uncles on my dads side have them too. When i get these skipped beats I expierence no symptoms at all, just feel un easy about it and it causes me to go into a panic. Although I have no symptoms, should i be worried about it? And are they hereditary?