Hi Pacfan, I'm sorry but I missed your request for information from me until now. To answer your question, the pe tubes I had inserted did help somewhat with the feeling of pressure building up in my ears, especially with altitude changes and with flying. I live in a hilly area, so I was in misery almost every day. Even shutting the car door would send my ears over the edge, filling them with pressure, tickling sensations, a feeling like fluid (even though doctors claimed I had no fluid). I wouldn't say the tubes were a perfect fix, however. I still have some kind of ETD...right now, as best we know it's caused by allergy and TMJD as underlying problems, so working on getting those issues corrected and hopefully fix the ears.
So, to break it down, I can now drive/fly without experiencing worse problems than before. But I am still symptomatic from day to day, especially in the afternoon and evening.
The pe tubes also did not make my symptoms worse (the left tube did create its own swelling/pressure, but this subsided within a week or two). They didn't make my tinnitus worse. If anything, I have tinnitus less these days than before.