I get it too. Right ear.
Blood pressure fine, no infections, only started during perimenopause and judging by all this replies, it seems to be most likely hormone driven.
I do the valsalva manoeuvre, hold my nose and blow, makes my ears pop and it goes…for a while.
I’m so glad I started this post. I thought it was just me and I had some deadly disease 🙄. I’m convinced it’s hormonal. Mine has disappeared for now. Making my ears pop did nothing for mine at all, but I did try it a fair few times. And as CLKD mentioned, a finger wriggle in the ear, but nothing moved it for me. Then one morning it had just gone