Hello, I Am A 25 Year, Moderately Healthy, Female. The

Hello,
I am a 25 year, moderately healthy, female. The past few days I have been experienced a skipped beat virtually every 5 to 10 seconds. This does not change with sleep or decreased caffeine use. Although, I have not stopped drinking about a cup of coffee a day. I monitor my heart rate via my heart rate monitor on my phone. Normally it displays normal, even ups and down. But now it looks like this /\ /\ /\ /````\ <- this being the "skipped beat." I feel these every once in a while, but over a ten a minute for 72 hours is a little disconcerting, especially with a history of heart failure in my family.
Thank you for your help!