Samsung Galaxy S6 volume randomly goes up and down like crazy?

A

AC Question

BEFORE READING THIS.... PLEASE NOTE.... I have reset, hard reset, rebooted, wiped cache partition in safe mode... numerous times, Plus removed as many 3rd party apps, ringtones as possible... and performed virus scans.

Just in the last several months, my Samsung Galaxy S6 volume will rapidly change up and down on it's own. It's literally like a poltergeist has taken over my phone. It also makes that volume beep noise repeatedly as it wildly cycles from mute, on, vibrate....mute, on, vibrate... mute, on, vibrate... mute, on, vibrate... mute, on, vibrate..... ("Bloop, bzzz, beep... Bloop, bzzz, beep... Bloop, bzzz, beep.... Bloop, bzzz, beep....")......UURRGGHH, I may need an exorcist for this phone!! Lol

One night it kept me awake doing this randomly to where I had to power the phone off and therefore cannot even have an alarm to wake me up. It's done this during phone calls and even just sitting idle. I managed to finally catch my phone doing this, red handed. I even recorded a video of this strange phenomenon using my tablet. (But I cannot find a site where I can ask this question AND attach a short video clip). Anyway, I love my Galaxy S6. I've had it for two years, planned on having it for two more years... But, now... I dunno. Anyone with an answer, I'd REALLY appreciate it. Thanks!