I have had Eustachian Tube Disorder for about a year now. It is actually a fluid build up in my left middle ear, and the tube is not blocked. It is not painful, or uncomfortable. I have seen a specialist who shoved a shuftiscope up my nose, but reported nothing untoward. I have no problem 'clearing' my ears ....
My hearing is dulled on one side, and I have had tinnitus in my right ear for years - but I have learnt to live with it. I had an audiology test, which showed that I had reduced LF perception, but that overall my hearing is not too bad for a 60+ yr old.
On occasion, the fluid seems to clear for short periods and I have to turn down the TV a bit. However, there seems to no 'cure' per se. The fluid can be drained, but grommets are not a long term solution, and there is no guarantee that the problem will not recur. I'm living with it...