Tinnitus is quite common in the general population, but I think that we get quite a lot of people here who feel there is some connection between thyroid and tinnitus. When the BBC posted a story about tinnitus and the brain, I sat up and took interest.
The very idea that tinnitus occurs over a significant part of the brain, not only the bits that directly handle the inputs from the ears, seems to make more like a widespread, systemic, causation rather than damage to the cochlea or nerves. Does this back-up thoughts about thyroid involvement? Well, not in the paper.
BBC News tinnitus story:
Full paper with free access: