I had a concussion about ten years ago (lost consciousness and fell on the floor). This gave me amnesia, which lasted for a few hours, and a tinnitus that laste

I had a concussion about ten years ago (lost consciousness and fell on the floor). This gave me amnesia, which lasted for a few hours, and a tinnitus that lasted for about three months. The tinnitus was high pitched and on a specific frequency (don't recall any more details). It made it difficult to focus. Based on some Internet search I found that other people were helped by listening to (coloured) noise. I started self medicating by keeping headphones on during the work day, and quite a bit outside work as well. White noise sounded annoying, pink noise sounded soothing, but both masked the tinnitus and helped focus. I mentioned this to my GP, who didn't think it would treat it, but also that it would not hurt, either. About three months in, basically a daily dose of six to ten hours of pink noise and the tinnitus was gone. Of course, it might have healed all by itself, and listening to the noise worked only as a temporary relief.