I feel cold on my back
The Chinese idiom, Pinyin is Q ī NH á nzh ě NL ě ng, which means to describe the loneliness and desolation of sleeping alone. It comes from the Song Dynasty Liu Yong's "claw Jasmine autumn night".
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Song Liuyong's "claw Jasmine (autumn night)" said: "I feel cold on my pillow, and the night is far away and sleepless." But he said that Mr. Tang had four apprentices and stopped at the Chen family. As dawn approached, the masters and disciples felt cold. The 47th chapter of journey to the west by Wu Chengen in Ming Dynasty
Discrimination of words
"Cold in bed" is used as predicate, object and attribute; it refers to loneliness
I feel cold on my back
Be indomitable in the face of danger - lín wēi bù náo