Okay, My old iPhone 4 messed up and the apple store could not fix it, so I paid $150 to swap out for a brand new one. The phone was working great... there is NO water damages.. & I haven't really dropped it. Recently, my phone has been glitching like mad.. the screen goes crazy.. like the phone has a mind of its own?! It will just bring up apps all by its self, if im texting sometimes it wont let me tap a certain letter or something. If i try to tap something it will tap something else all by itself?! Its SO annoying! What in the world is the problem?! Someone please help.. should I take this phone back to the apple store or what? I didn't buy the warranty so I'm not sure if they'll fix it or not.. 