Of course each or our cases is a little different, but I thought for years my heart was skipping beats. I learned later that what was happening was actually a premature beat - either a premature atrial contraction (PAC) or a premature ventricular contraction (PVC). Seeing them on an EKG strip plainly showed that. After the premature (early) beat, the time to the next beat is often a little longer, making it seem like a skipped beat, but the number of beats was the same, at least in my case. Even with a pacemaker I will occasionally have them although there may not be as many or they are harder to detect.