For those of you with TMJ related Tinnitus: I've been trying to figure out the cause of my tinnitus. This morning I noticed something if I open my mouth, lightly put a finger in both ears and slowly close my mouth again. My left ear is fine, however in my right ear (where I have the tinnitus) when my mouth is about 75% closed my ear canal makes a 'thunk' sound. What do you think? Not normal?