hi boop,
i was wondering what you meant by a dual personality? is it that your mood changes heaps (e.g., happy or sad)? or that you feel there are different ppl living inside of you? i am sure what you are experiencing is quite common, but if we had a bit more information on what it is like for you, we might be able to point you to the right section of PC where other ppl also seek support for their disorders .