I have the same thing, it feels like your ear is clogged with water, or when you shift in altitude, then like a high pitched sound for ten seconds and then ever

I have the same thing, it feels like your ear is clogged with water, or when you shift in altitude, then like a high pitched sound for ten seconds and then everything is normal again. Every few months or so this sporadically happens. Funny thing is every time I mentioned this IRL there's always someone who has experienced it too, like some sort of common mystery condition