Wow, we never thought something like this could be possible.
According to the Daily Mail, a woman in China known only as Ms. Chen, woke up unable to hear her boyfriend talking to her. Ms. Chen went straight to an ENT (ear, nose, throat doctor) and was shocked to discover she could hear everything female doctors were telling her, but not a word from any male around.
She went to sleep with nausea and ringing in her ear and thought getting a good night of sleep would help. Now she has reverse-slope hearing loss, which means she can only hear high frequencies.
Thankfully, Ms. Chen is expected to recover and the hearing loss is temporary. If you experience any changes in your hearing, don't hesitate to see a doctor!