Hello sir, the answer to your question is the meds they gave me were all "ototoxic" ie poisonous to the cilia in the inner ear.
I ended up with bad tinnitus during tx and even now have issues. Not sure how much due to aging! But. I need hearing aids after all those drugs.
Hope yer doing ok? I am still recovering from my two go arounds, and still waiting on next. Round of meds to kick *** on this bug.