Meta quest 2 pop sound (followed by beeping from inside)

I was just playing gorilla tag and then pop sound occurs, then I hear a continuous beep inside the headset so I'm not risking my life over a monkey game so I shut it down by holding power button and it stopped after...

Oh by the way I can't get into my meta account where the device is. Bought it on Amazon refurbished, bought it like 2 years ago, I seriously don't know, the email with the account is deleted I remember password and all that but eveytime I try to log in I get a "Check your email for a confirmation code" but the email is deleted:/

Someone pretty please help I am not touching that headset until.. I don't know what (previous experiences: software glitches, bad tracking, overheatting)