Red lines on iPhone 6
My iPhone 6 randomly started to show these red lines (see photo below) as well as the screen glitching (see video). I did not drop or hit this phone on anything. I simply put it in my pocket, completely fine, then when I took it out it had the red lines on it. What can I do to fix it?
Video of the iPhone screen glitching
iPhone 6, iOS 11.3.1, null