I have tinnitus which can come out of nowhere and last for months at a time. I get the whoosing feeling in my ear (sounds like it is in my head, and a tinkering noise in my other ear. It causes major balance issues. Finding an ENT that specializes in this will help you if it is indeed tinnitus. Lots of us here have it

I have it too sometimes. It's usually accompanied by massive throbbing in my head and momentary loss of vision. I hope you have a good day!

When I lie down, I will sometimes get a rhythmic wooshing that will get quite loud. It's happening now. I know the sound is corresponding to my pulse, but I have no idea why it literally wooshes ( great description) and gets very loud then fades then gets loud again. I do have a minor aortic valve problem, but this sound has come and gone for years.

Along with so many others on this site, I have tinnitus. It changes in description - most often it is at a steady moderately annoying ringing with a tin-like quality. At times it goes into what I call a whirring noise that over shadows the tin can ringing - ringing is still there, just not as prominent as the deeper whirring. There seems to be a sensation of fullness in my head/ears, as well. Difficult to describe sounds, but ear trouble seems to be fairly pervasive in this group.

Not just any ENT can help with tinnitus I foubd, btw. One Dr put me through sinus surgery and it did nothing. I found a Dr who specializes in tinnitus and the ear, he's a surgeon and the only Dr on the coast with this specialty. Regular doctors will give you a water pill but no information on diet to eliminate it. I Google tinnitus candida and found a tinnitus forum loaded with posts and information on this.
If you have noise in your ears/head, whether it is one or both sides, I hope you will check it out. You're not alone!