Recently I've been having problems using my phone. I'll try and open an app and sometimes it won't register than I'm pressing the button. This includes trying to hit the home button on the phone. Other times I'll press an app it will open up a different one and then open options within the app. After pressing the initial app my fingers won't be on the screen but it will be opening things on the phone. Sometimes it does this when I'm not even holding the phone. I've done a battery pull, but short of resetting it to factory settings, I don't know what to do. I haven't downloaded any new apps recently. Within the last month I did update the phones OS. Help or ideas are appreciated.