Comment by WarOnPrivacy

> It was causing a lot of anxiety because I was afraid of how much louder it may become.

Been there. After a few years of slow increase, mine suddenly cranked up to 11 (due to an infection, it turned out). There were a few rough weeks while I worked out counter & coping measures. I still need those measures from time to time.

    measures:beltone app & speakers at the head of my bed. 
    A half doz (non-controlled) insomnia meds to rotate thru.
    I discovered UK Great Railway Journeys vids; 
       they interfered with distress feedback loops