I've been dealing with a blocked right ear for about two years now, and despite checking it out several times, no one can say what's wrong. Lately, I've also had this feeling of mucus at the back of my throat that I can't seem to cough up. It's really affecting my daily life because whenever I talk, it feels like there's an echo of my own voice in my head. What could be causing this and how can I make it go away?