I have an early Gold 5s 32gb ATT. Basically, i notice one day my vibrate was louder than it was before. I thought i was being paranoid at first, until my coworkers and my girlfriend noticed it as well. It gets really loud when I start messaging on fb, etc. I compared it to my gf's gold iphone. I notice it's much more subtle. Mine sounds rough, almost as if the vibrator motor is loose or something. I took it into the apple store and the the vibrate is "within specifications." Any other ideas I can do? It's that annoying for me, esp with such a new phone. Thanks guys!