hey, 19 yrs. Have hade tinnitus for 7 months. Only hear it when its completely silent. Have it some degree in both ears. Sometimes vibrations in the right ear. The thing that scares my a little is that, when i put my finger inside my left ear, to block all other sounds out from that ear, i hear a even stronger helicopter-like sound. Regularly i have this very mild humming sound. What does this mean?