Initially, the narrator's tone is confident but helpless. She clearly expresses her disagreement with the treatments that her husband and brother, both physicians, have recommended for her. She says,
Personally, I disagree with their ideas.
Personally, I believe that congenial work, with excitement and change, would do me good.
Her tone is confident; she feels that she knows what would be best for her in her "nervous condition," and not being listened to by her husband and brother is more than upsetting. She tells us that John, her husband, doesn't believe that she is sick, "And what can one do?" she asks. Further, she thinks she knows what treatment would work for her, "But what is one to do?" she asks again. Her constant asking about what one can do makes it seem as though she feels there is not much she can do; she is powerless to effect change in her situation because her husband prevents her from doing everything she wants. This explains why she gets "unreasonably...
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