I get tinnitus in my near–deaf ear. I had been told it was the part of the brain processing sound from that ear making noises from the pulse of blood in the brain. Maybe not:


Quote:

Tinnitus, or persistent ringing in the ears, does not have a single cause, but it is often related to hearing loss; a recent study suggests the condition may stem from hard-to-detect nerve damage. Tinnitus can sometimes go away on its own over time, but in other cases, it worsens, with chronic cases lasting three months or longer. Various treatments can help people manage the condition, including cognitive behavioral therapy (CBT), a specialized form of talk therapy that focuses on identifying and changing distorted thought patterns and their associated behaviors. In the new study, published Jan. 9 in the journal Frontiers in Audiology and Otology, researchers tested whether 28 people with tinnitus would respond to a form of CBT delivered via a chatbot-based app called MindEar. In some cases, the chatbot therapy was also paired with virtual sessions with a trained psychologist. With or without the psychologist, the participants saw noticeable improvement after using the app. Previous research has "laid the groundwork to say yes, CBT is very good," Fatima Husain, a professor of speech and hearing science at the University of Illinois Urbana-Champaign who was not involved in the study, told Live Science. Now, this study is "leveraging technology to make it even more readily available and cost effective," she said.

https://www.livescience.com/health/wellbeing/tinnitus-often-causes-distress-a-new-app-could-help

I've had tinnitus for more than thirty years, but it
doesn't worry me in the least.  It's a high frequency,
continuous tone, very occasionally interspersed with
a short-lived, deeper mid-tone.  The result of too much
listening to heavy metal with high-quality headphones
turned up to level 11 LOL.

So... firstly I consider CBT as "real science" bullshit
with no viable supporting evidence, and no practical
relieving outcomes—other than fooling oneself for a
few days that it's working (possibly encouraged by the
fact that one has paid a psychologist $160 per session
over a 6- to 8-week period?)   After all, yez gets what
ya pays for doncha?   Ha!

At any rate, this research sample was ludicrously
tiny (14 self-selected subjects), with zero statistical
significance, plus... there was no control group FFS.

   Ignore it.     ::)

Some stage I guess I will get an artificial ear—a cochlear implant:

https://www.cochlear.com/au/en/home

Reason I lost hearing in my left ear—a virus.