mine feels weird as. it goes like this, '---' is a normal time between beats:

beat---beat---beat-beat-beat-beat--beat---beat---beat

can be different variations of that, sometimes the increase is shorter or longer, harder or softer etc.

or sometimes it'll go all crazy, mostly after moving around and it slowing back down:

beat---beat-beat-beat-beat--beatbeat---beat-----beat--beat-beat

when at rest it doesn't pound or race in that rhythm or anything, my resting heart rate is usually between 48 - 60, sometimes it can be very subtle but i have nothing to compare it to. should a pulse be as regular as a ticking clock at rest?

if anyone knows anything about heart rhythms, i know this sounds like sinus arrhythmia but there's no correlation between my breathing and heart rate.