Macbeth Questions Act Five, scene 1: What is one major difference in the style Shakespeare uses

Scene One

This is Lady Macbeth’s sleepwalking scene. Read the scene carefully.
1)  What is one major difference in the style Shakespeare uses for this scene versus the others?  Why does he do this?
2)  In what ways is this scene linked to her unsex me speech in Act One, scene five?
3)  Look carefully at the images that come out of her subconscious mind (light, water…) . What do they suggest about her state of mind?
4)  What is wrong with her hands?  What theme does this reinforce?