Is it normal to feel like two people at once

Is it normal to feel as though there's two people in your head at once? I have experienced this kind of stuff before but today I was feeling depressed and didn't want to do anything but then my 'other self' got up and made me a hot tea and made me sit in bed and watch a movie to cheer myself up, is This normal? Because the 'other self' made it feel like it was helping out the depressed 'self'