As someone else said, see an ear, nose and throat specialist for the best advice. There are a number of different reasons that could be occuring either individually or together to create your problem, and although you're predicament may not be able to be cured, there should be some things that can be done so that it is less severe. I understand exactly how you feel, and when my ears are blocked I wish i could simply yawn or do a quick blow like most others to get rid of the discomfort when it occurs. Anyway, your case sounds much worse than mine, so best of luck in getting yourself sorted out.