It is unfortunate that you suffered sexual abuse as a child. Both Dissociative Identity Disorder (Multiple Personality Disorder) and Borderline Personality Disorder may be associated with a history of childhood abuse, as well as co-morbid depression and anxiety. Both disorders often cause significant impairment in social, occupational, and/or academic functioning.
Dissociative Identity Disorder is characterized by (a) the presence of two or more distinct identities or personality states; (b) at least two of these identities or personality states recurrently take control of the person's behavior; (c) inability to recall important personal information that is too extensive to be explained by ordinary forgetfulness; (d) the disturbance is not due to effects of intoxication with alcohol or illicit drugs, or caused by medical disorders such as seizures.
Borderline Personalty Disorder is characterized by a pervasive pattern of instability of mood, interpersonal relationships, self image, and marked impulsivity.
I urge you to discuss your concerns further with your treating therapist. If you or your therapist are not comfortable working together, you may consider re-evaluation by another mental health professional.
I hope the person who sexually abused and tortured you is dead! I despise those kind of people, they are a waste of life on earth!