The mental illness that can make someone appear normal but still have a serious issue is called "High-Functioning Mental Illness." It is a term used to describe individuals who have a mental health condition but can maintain a level of functionality in their daily lives.
High-functioning mental illness can apply to various conditions, including but not limited to:
High-Functioning Bipolar Disorder: People with this condition experience periods of extreme mood swings, including manic episodes and depressive episodes, but can still manage to function well in some aspects of their lives.
High-Functioning Schizophrenia: Individuals with this condition may experience hallucinations, delusions, and disorganized thinking, but they can hide or manage their symptoms to a certain extent, allowing them to function in social, academic, or professional settings.
High-Functioning Anxiety: This refers to people with anxiety disorders who can maintain an outward appearance of normalcy and cope with everyday activities, but internally they struggle with persistent and intense anxiety.
High-Functioning Depression: Some individuals with depression may be able to mask their feelings of sadness or hopelessness and continue with their regular responsibilities and interactions, despite the emotional turmoil they experience.
It's important to note that the term "high-functioning" does not diminish the seriousness of the mental health condition. Even though these individuals may appear to be coping well, they still require support, understanding, and appropriate treatment to manage their condition effectively. If you or someone you know is struggling with mental health issues, it is essential to seek professional help from a qualified mental health practitioner.