hi and welcome. Im a supporter and have researched and like you can,t find how this is linked to indegestion?
have you been checked for otis media ?
labrynthitis?
have you ever went for second opinion? as this must be painful to suffer which would make me think its inner ear rather than outer.
what were your symptoms when it first started did you have vertigo or dizzyness feeling sick?
sorry its not much help but i don,t mind researching further if i knew your previous onset of ear trouble when it started.