Watched a video about hearing loss that I found most interesting -
@Drone Draper -- Thanks for posting that video. The images, pictures, illustrations, animations, etc. are the best I"ve run across. I would have found this video invaluable in my first days of tinnitus when I had little understanding of how the inner ears worked, and how it related to my tinnitus.
In my case, tinnitus was kicked off by an ototoxic drug (Promethazine, also known as Phenergen). It's an anticholinergic drug which inhibits acetylcholine receptors in the brain and neurological system (
including the delicate nerves in the inner ear!). These kinds of drugs block the action of the neurotransmitter acetylcholine, which in turn inhibits nerve impulses. Is it any wonder these kinds of drugs can (and does) create tinnitus? -- I don't know if that acetylcholine blocking is what caused a huge irritation directly to my major hearing nerves, or whether that irritation was caused by my hair cells being so traumatized.
I very much appreciated the part in the video where the discussion on tinnitus began (45:38 Mark). Some of his comments included: 1) Tinnitus is essentiallly abnormal activity in the hearing nerve; 2) In tinnitus, the hearing nerve becomes "irritable" and begins to "rhythmically discharge". His hope is that if they are successful with hair cell regeneration (which he is quite optimistic will happen), then hopefully the nerve will no longer be irritated, and hopefully no more tinnitus. He also mentions how nerves from our teeth attach to the cheek bone, and transmit impulses to the ears. Obviously, a problem with that nerve (such as a tooth or gum infection) has the potential to cause tinnitus.
His use of the words "irritable" and "irritated" gave me more insight into why tinnitus onset can be so emotionally and psychologically shattering. He mentions that after a certain amount of time, the brain usually comes to some kind of "accommodation" with the discordant rhythmic discharge--but not always. -- If that doesn't happen (as in my case, even after a year), my take is that the constant irritation of the major hearing nerve in turn irritates the auricular branch of the vagus nerve--which in turn irritates the entire vagus nerve which runs through literally every major organ system in the body. And the vagus nerve is is the primary orchestrator of the body's parasympathetic (calming) response (it's a master communicator in many other ways as well).
This all explains why therapies such as cranial sacral, meditations, and other calming techniques can help a number of people with tinnitus. But results vary, mostly likely because of how seriously irritated the whole system is to begin with. If it's ultra-irritated (as in my case), it's likely going to take a lot longer, with progress being painfully slow. And quite frustrating, because there's no guarantee it will lead to a lessening of the tinnitus (preferable!), or habituation, or neither. No wonder so many of us feel as if we're living on the edge. Our bodies and nervous systems are screaming at us that something is very wrong, and we're starting on a whole new learning curve of how to address those alarm signals the best way we can.
@Striveon
@TracyJS