The whole double vision thing was still bothering Blake, but she found that it helped to close her well their eyes while sitting there. With the blackness of her mind and the general ambience of the neighborhood, some of the disorientation went away. Making progress, she wondered how she would ever get rid of the dual-control of the bodies. That's when she heard a bird singing outside the living room.
Like the pain from earlier, she could only really hear it from her living room self, while bedroom self just heard silence. Still it just felt she was hearing the bird at half volume so instinctively concentrated on it. A sudden wave of nausea went over her living room self and when she opened her eyes, she only had one point of view now and much of the disorientation was gone. She still felt a mental weight, which she'd guess was her mental connection to her bedroom self. Saving her bodily investigations for later, she rushed to her bedroom to see what had happened when the other body wasn't under her direct control.