Hi Lexi,
Yes! I"m sorry for what you're going through. I've had a lot of trouble with my ears, tinnitus would be the sound you hear when it is quiet I'm sure you know.....

I've had a crunching crackling noise too, but that is when I'm eating and has to do with jaw alignment I think. I've also recently had a contant "popping" noise, like clicking, as though the inner ear muscle connected to the ear drum was "twitching".....thank goodness it has mostly gone away on its own.
So I understand how frustrating it can all be.

I had found out what this tapping/clicking thing was, now I don't know, but it does have to do with the eustachian tubes not being able to close properly. All I usually have to do is tilt my head to the side and clear my throat at the same time and it will usually go away for a while until I have to do it again. Heavy excersise (pressure on the ears) makes it worse. hugs
I hope you can get to an ent.