So everytime i get a text message there is a vibration sound, then slightly after that vibration you can hear this "click" or rattle noise. It annoys THE HECK out of me since i'm OCD about everything. Feels like something is loose inside my phone and makes it feel so cheap lol. The rattle is also noticeable if you tap on the back or you place it down on a table. I did have this problem on the 4s which turned out to be normal but I'm hearing these reports that the rattle isn't normal and its a loose battery or component inside the iphone 5? So i know on the 4s it was normal but this is a new iphone 5 i just got. Normal or should i get it exchanged?