Does Accutane Cause Heart Palpitations or Arrhythmia?

I am on my third week of Accutane (40mg). So far, I haven't had any bothersome side effects outside of the standard dryness, chapped lips and maybe a little more tired than usual here and there. In the last 3 days, I noticed when I lay down to sleep that my heart beat seemed to be fluttering or skipping/doubling a beat a beat. I have had this maybe a handful of times in the past, so I brushed it off. Today, it seems off and on for 4-5 hours so far. Is this related, and normal in any cases?