If you see that the headache is intense or won't go away with around-the-counter pain medication, it may be worth checking your blood pressure level.“if any” と“if at any time” は、いずれも数を意味する表現で混同しやすいのが特徴です。スキマ時間にでも、“if any” =「数量」、“if at any time” ＝