Hi, does anyone out there also experience this strange sensation when plugging in the original charge cable you run your fingers on the back of the phone and it vibrates lightly and leaves a tingling feeling. Quite odd - only happens on charge. Doesn't matter where you touch the iphone on the back only it tingles. I read about this on another forum on an older ipad, but surely on the new iPhone 6 this should not be happening? Anyone else also experience this?