So after I leave a certain sound abruptly, a small noise would accompany it a few seconds later.(5?) It sounds like a small click, similar to pausing a youtube video very quickly using the timeline on the app. For example I would set an alarm noise and it would preview the alarm, then I would stop it and listen for a bit and I would hear the a small click. I don't know if I just started noticing it because I put the iPods volume louder or if it's normal. This is without the earphones plugged in; just the speakers. The click is very soft, I had the volume to half to be able to hear it. Should I be worried? (1 month old 3G)