For those who have difficulty with change in air pressure, have you experimenting with train travel? How has it gone? I had a horrible experience in a plane in 2012 and haven't been on one since. I also have trouble in the car with changes of elevation and thus pressure. Pressure equalizing ear plugs help me drive up to 1000 ft. Without them, I try to stay below 500 ft. I imagine it is the change more than the actual elevation. Trains seem promising because trains must take hills very slowly. I did successfully take the Coast Starlight from the SF Bay Area to LA. It goes up to about 1500 ft. north of San Luis Obispo. I wonder if I dare try it going north--where it goes up to 5,000 ft. Or maybe somewhere in the southwest. I really miss traveling!
I took trains in Europe and while I didn't have any ear issues on the train, I still felt the rocking sensation of the train long after I was off it. Kind of like a boat. Of course, that could have just been me?!