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Fine the lines) that shows that Macbeth is beginning to become mental unstable

Macbeth has hallucinations, he cannot sleep which makes him sleep deprived, his guilt slowly catches up to him due to him killing people (more than one person) his greed for power pushes him over the edge which causes his mentality to dip and for him to become unstable. He is able to commit to anything to become kind but he can’t handle the consequences x

They mostly last for a few weeks, or months, but severe cases can last for years.