The experience that Nekala reports of feeling as if she is watching herself live from outside her body is known as depersonalization or derealization. Depersonalization disorder is a dissociative disorder that involves persistent or recurrent feelings of detachment or estrangement from one's own thoughts, feelings, or body. Therefore, the most likely diagnosis for Nekala's condition is Depersonalization disorder (Option 5).
Dissociative identity disorder (Option 1) involves the presence of two or more distinct personality states or identities, which may take control of a person's behavior at different times. Dissociative fugue (Option 2) is a rare condition that involves sudden and unexpected travel away from home or work, accompanied by amnesia for one's identity and past. Dissociative amnesia (Option 3) involves an inability to recall important personal information, usually following a traumatic event. Dissociative visual impairment (Option 4) is not a recognized disorder in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5).