女性，25岁。既往月经规律，现月经过期 16天无牵潮。自述近来有厌食、晨起呕吐 症状。最可能的诊断是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25955' and id < 2176816 and id<>'2176816' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25955' and id > 2176816 and id<>'2176816' order by id asc limit 5