頭あたまがいたい頭が痛い表記・読み:頭がいたい・あたまがいたい1having a headacheexpressions (phrases, clauses, etc.)い形容詞2racking one's brains; troubling over somethingexpressions (phrases, clauses, etc.)い形容詞idiomatic expression札へ残す語をコピー