Guys, today i noticed for the first time something strange. Shortly after unlocking the phone, i saw under 2 app icons, instead of the app name, the wording "checking" or "verifying" i can't recall exactly. It went away in 1 second at most and the app name reappeared. The apps were the default iOS weather app and Youtube. Running iOS 9.3 on an iPhone 5S. I have this device for 2 years, never had, saw or heard anything similar before.... Any ideas what's up?