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A clear example of the No True Tinnitus fallacy.

> Tinnitus is a condition when a person hears a ringing sound or a different variety of sounds when no corresponding external sound is present and that other people cannot hear.

https://en.wikipedia.org/wiki/Tinnitus

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> What he's describing is fairly normal and is just to do with blood pressure in your ears, from what I've subsequently read.

That’s called tinnitus. And I agree, it isn’t rare. From TFA, roughly 15% of people have it (that report it).

Sounds like you may have severe tinnitus, which is more rare, limited to 1-2% of people.

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There are different forms of tinnitus, due to there being different causes of tinnitus.

Some people even have multiple frequencies of tinnitus at the same time.

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