(Dilemma) Myung - 6th grade in elementary school

My second child is a sixth-grade girl. She has been hearing ringing in her ears since last year.

I went to the hospital for a check-up, and my hearing was fine. Still, my child sometimes hears ringing sounds and gets scared.

Maybe it's because the child doesn't eat well and lacks energy... or maybe it's just because they're in a growth phase.

It's not often, but I'm worried because the child is young.

Do you have any good suggestions?