I have been having problem with my right ear. Constant humming, hearing is muffled, feels like fullness or pressure in my ear. I have tried ear irrigation and popping my ear, which the constant attempt to pop my ear is starting to hurt my head. Left ear is fine. At times when I plug my nose and blow out, it seems like my right ear opens up and my hearing is better, yet when I let go of my nose and release, I am right back to square one.