I have a gold 5s and noticed when i get a text or when phone is on vibrate I can hear the power button slightly rattle. I noticed the Power button looks like its loose thus the rattle. I went to the Apple Store Saturday and tested the models on the floor and they all seem like they are a little loose, and when I pick up the phone to shake it you can hear a slight rattle. My question is does anybody have this issue? Thanks in advance.