My left ear has had a issue for a couple of years now where certain frequencies cas a sensation similar to water coming out of the ear, sounds like a light heavy rumble. This happens with phone speakers, washing dishes, sometimes happens during silence. You know when you try to tense the muscles located behind your jaw or head, you hear something? sort of like that. There is also soft tendon/cartilidge thats moves in my ear when i move my finger around. Ive been to a GP which sent me to an ENT which said they cant see anything wrong, i have also been for a hearing test and they all had no answer for me. It seems to be worse in winter season.