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She is in the state of mental instability and always has illusions that someone is in her room.

她现在精神状态不稳定，老是觉得有人在她的房间里。

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The symptoms include weakness , lack of appetite , diarrhea and vomiting , skin pigmentation , mental instability , low blood pressure , loss of body hair and absence of sweating .

该病症状包括：体虚，食欲不振，上吐下泻，皮肤色素沉着，情绪不稳定，低血压，脱发，排汗不畅等。

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In some cases, eccentricity spilled over into mental instability: Paul Ehrenfest's desire to keep up with developments in quantum mechanics eventually drove him to suicide.

ECONOMIST: Modern scientists: Physical presence | The

Generally, those reasonable regulations would be about criminal background, background of mental instability, basically the ones that are outlined in the opinion of the judge who wrote the Parker decision, Judge Silverman.

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She told him (and the rabbits that sometimes surreptitiously accompanied the riders) that people were becoming more and more unbalanced: studies had proved it, which led the psychiatrist to conjecture that perhaps mental instability was not so much a disease as a stratum of normality, just below the surface of normality as it was commonly conceived.

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