Yes, it is possible for someone who has never been formally diagnosed with a mental illness to be considered mentally ill by others if they exhibit symptoms commonly associated with mental health disorders, such as paranoia. People might form such perceptions based on observable behaviors or unusual thoughts and beliefs displayed by the individual.
However, it's crucial to remember that making a diagnosis of mental illness should be done by qualified mental health professionals after a thorough assessment and evaluation. Symptoms of mental illness can be caused by various factors, including stress, trauma, substance use, medical conditions, or even situational factors. These symptoms might not always indicate a specific mental disorder.
It's essential to avoid stigmatizing individuals based on their symptoms or behavior. Mental health is a complex and nuanced area, and making judgments without proper knowledge can be harmful and inaccurate. If you or someone you know is experiencing symptoms of mental illness, it is advisable to encourage seeking professional help from a qualified mental health provider for a comprehensive evaluation and appropriate support. Early intervention and treatment can lead to better outcomes for individuals experiencing mental health challenges.