Macbeth (why does the gentlewoman feel that she should have a witness to confirm her speech)
Answers
The gentlewoman, though a keen to Lady Macbeth, is afraid of the queen. The low status of the gentlewoman and the power of the ruthless queen can lead to the result in which nobody will believe the witness herself. The horrible deed Lady Macbeth has done is now driving her to walk at night, uttering those deep dark secrets that were meant to be kept sealed withing her mind. The gentlewoman has heard and saw all of her queen's speeches and movement, but there is no one to support her in this as no one except herself was there. She is afraid.
The woman of her word, however a quick to Lady Macbeth, fears the ruler.
The low status of the noble woman and the intensity of the merciless ruler can prompt the outcome in which no one will trust the observer herself.
The horrendous deed Lady Macbeth has done is currently driving her to stroll during the evening, articulating those profound dull privileged insights that were intended to be kept fixed withing her brain.