I have not looked into it yet. I unfortunately cannot afford to.

The problem has not went away. Overall, I try to just keep both of my ears open and I don't have an issue. With some frequencies (like telephone sounding sounds), it happens slightly when both ears are uncovered, but it's rare.

I plan to get it looked at one day if my financial situation gets resolved. Luckily it hasn't gotten worse as far as I can tell though. It's just very annoying when it does happen.