You suspect a patient is describing a disturbance of the continuity of self. Before revealing the answer, decide how you would assess for this.

Ask the patient directly whether they still feel like the same person they were before their illness or a significant life event, listening for a felt loss of continuity between who they are now and who they were before. Note whether this is expressed relatively mildly, as a strong sense of personal change or transformation, sometimes framed in terms of a fresh start, or whether it reaches the more severe and rare degree of describing having died under their old identity and been reborn as someone new. Very rarely, ask whether the person describes experiencing multiple distinct personalities, a much more severe and specific pattern within this same family of disturbance, and, throughout, clarify whether the disturbance concerns time (past versus present self) rather than experiencing more than one self simultaneously.