YE GODS. You have my utmost empathy! I definitely get hearing issues when the atmospheric pressure changes. Speech can sound weirdly ātinnyā and flat. On top of which my own 24x7 tinitis is louder and more tuneful: Bong! BONG! Bong-bong-bong-BONG!
I hope you get some answers to this curious phenomenom youāre experiencing. Drugs may cause MORE of the issue if you are sensitive to it. By the same token, Iād probably try anything - even old wivesā tale - if I knew of one. Antihistamine? Warm compresses? Massage the ear?
Keep us posted!