I get fullness in my ears and sort of echoing which impacts, but kinda link it to weather - this taking me 18 months or so to figure out.

Ear specialist, after ruling out physical problems as good as told me it was imagination and this on day of consultation when symptoms were bad. I could so easily have put myself under the bus going by as I walked out of this ignorant, arrogant man's rooms.

Neuro physio had no hesitation in telling me my symptoms are due to atmospheric pressure, this being quite common for folk after brain injury.
Suggested holding my nose and gently blowing to make my ears pop, or use an inhaler.

Aeroplanes are bad and have found that by wearing earplugs and sniffing on hanky with eucalyptus oil or inhaling those nose stick gizmo's (don't know what you call them) it helps.

Best of, and if anyone else has found something helpful please share.