I am writing a short story, but I am mostly stuck in one word substitution (as my vocabulary isn't that strong). So I want to know one word for the following phrase —

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> the act of taking your head back on seeing something strange (or unexpected)
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Sample sentence —

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> She turned away and was a little shocked ... (the act of taking your head back on seeing something strange (or unexpected)) ... by the sight of the filled porcelain.
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