Answer:
dissociative identity disorder
Step-by-step explanation:
Dissociative identity disorder -
It is the medical condition where one single person lives the life of two different individuals , the reason for this disorder could be any severe trauma in the early age like , any physical or emotional torture .
The person living the life or two individual is completely unaware of this state , that he or she is living the life of another personality .
Hence , from the question , the disorder mentioned in the question is the dissociative identity disorder .