What mental illness did Michael have?

Could you please elaborate on the specific mental illness that Michael was diagnosed with? It seems that the text does not directly mention a specific mental health condition. If there are any clues or hints within the passage, it would be helpful to identify and discuss them. Alternatively, if the paragraph is referring to a hypothetical or fictional scenario, it may be important to clarify whether the mental illness is intended to be a real-world disorder or a creative construct for the story. Additionally, it's worth noting that mental health is a sensitive topic, and discussing it with empathy and understanding is crucial.