لخّصلي

The narrator in The Tell-Tale Heart is nervous ("very dreadfully nervous"), paranoid, and physially and mentally ill. He doesn't know the difference between the "real" and the "unreal," and seems to be completely alone and friendless in the world."Ringing ears" or "hyper sensitive ears," is a condition which can cause auditory hallucinations, intense sensitivity to sound, and possibly amplified hearing.Poe doesn't explicitly tell us if the narrator is male or female.He wants to kill the old man simply to be free of the power of his eye.

The narrator in The Tell-Tale Heart is nervous ("very dreadfully nervous"), paranoid, and physially and mentally ill. He doesn't know the difference between the "real" and the "unreal," and seems to be completely alone and friendless in the world.
Poe doesn't explicitly tell us if the narrator is male or female. The only reason we feel comfortable calling the narrator "he" is these lines: "You fancy me mad. Madmen know nothing".
He wants to kill the old man simply to be free of the power of his eye.
Even under those circumstances, the narrator still seems abnormal and frightening because seems to enjoy spying on the old man for the eight nights prior to the murder.
"Ringing ears" or "hyper sensitive ears," is a condition which can cause auditory hallucinations, intense sensitivity to sound, and possibly amplified hearing. This disorder is a "disease" the narrator says he has.
The narrator seems completely hopeless, a bundle of nerves and murderous impulses, and extreme sensory perception. He is tortured by the murder he committed, even as he claims to have enjoyed it.