Oh I actually found a little temporary solution. I had caught a cramp in my low jaw in the middle of class and as I was massaging my throat / lower jaw area the ringing completely went away but I was very sensitive to loud noise.. so I plan to test it out again when I go home but so far I got about a hour & half worth of silence but loud noises will trigger it back again but at a low pitch. Once I experiment with being in a quiet room and hopefully can silence the ringing again I’ll update my post to help others, who have a similar case like me. Then I’ll post my report of what the doctors say when I get an appointment.