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i got tinnitus out of the blue in the first covid summer before any vaccinations but no idea if it was covid related (didn’t have any obvious symptoms) though the doctor had a look and i had glue ear, which is odd as i never had that as a kid, that cleared up after a few months, was very odd tilting your head then having your eardrum tickled as the fluid moved around, but the ringing remained.
had a zoe study antibody test recently which was negative but that only states a 6 month previous detection window for covid.
so who knows...
Get it checked out. From my understanding, steroidal injections are pretty effective at treating inflammation based tinnitus.