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Crackles in head
After receiving Covid vaccinations and while having Covid, I would hear a crackling sound in my head. I reported this as a potential adverse reaction to the vaccine. I am now hearing these sounds again. Could this be long Covid? Something else? Thanks ....
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Look up tinnitus.. don’t know about crackling but I’ve heard of screeching and high pitched and low pitched noise from tinnitus.. It’s thought it is your brain filling in for lost hearing that it is not receiving but nobody seems to know.
If you have had any type of congestion/stuffiness this is often the sound of thicker mucous mobilizing through the sinuses.
People with sinusitis often complain of the same thing.