Can kind of understand, although for the normal verses, the notes are no higher than “high” C (which isn’t very high).
Yes, she does pull some antics that can twirl through really high things, but most of the lingering stuff isn’t that high.
She has one song which I think the ending is “How would I know?” or something similar with the words repeated among a a piercing screech. When I heard it in a supermarket, I thought it was the wheels on my carriage or a baby’s cry. It is tough to describe tinnitus. Ambulance sirens penetrate mightily yet other sharp noises are without reaction by me.