* She fears the punishment of God. Lady Macbeth is a deeply religious woman, and she believes that she will be punished for her sins in the afterlife. This fear is evident in her frequent references to hell and damnation.
* She fears the loss of her sanity. Lady Macbeth is aware that her actions are taking a toll on her mental health, and she fears that she will eventually go mad. This fear is evident in her sleepwalking and her hallucinations.
* She fears the loss of her husband's love. Lady Macbeth knows that her husband is deeply affected by his guilt, and she fears that he will eventually come to hate her for her role in his crimes. This fear is evident in her attempts to comfort and reassure him.
* She fears the loss of her reputation. Lady Macbeth is a proud woman, and she is concerned about how her actions will be perceived by others. She fears that she will be seen as a monster and that her reputation will be forever tarnished.
These fears eventually drive Lady Macbeth to her death. She cannot live with the guilt of her crimes and the fear of the consequences, and she ultimately takes her own life.