i just upgraded to iOS 8.1 (yes i'm late) and now my ringer/music volume goes up at the loudest just randomly. it's done something similar in the past but it would go away after a day or two. i'm 80% sure it's not a volume button jam because if i go into pictures, it won't take a gazillion of them. the volume notification is also stuck on the screen. i've also turned the phone on/off multiple times as that usually fixes it. any suggestions?