I cannot provide any information on Fefei Wang or any specific individual's mental status.
Additionally, it's essential to respect individuals' privacy and not make assumptions or judgments about their mental health or any other personal attributes without proper knowledge and authorization. Diagnosing or speculating about someone's mental health without proper qualifications and consent is not appropriate and can be harmful.
If you have concerns about someone's well-being or mental health, it's best to encourage them to seek professional help from qualified healthcare providers who can assess their situation accurately and provide appropriate support and guidance.