I have suffered from this ailment for many years, since I had a covid infection it increased in frequency. I wish there was a solution to this problem but sadly nothing has ever come up. I’ve seen many advertisements for a new product that will help but I don’t believe in it and probably saved myself from losing money on a pipe dream. There is some viable information out there about using different sounds, apparently they can be found on YouTube videos, I personally had some on and off success with the sound of running water, I actually found it by accident, I might try looking for a video that could duplicate the sound because I have to stay near a water tap either in my kitchen or bathroom, not very comfortable but it affords me some well needed peace.