-losepresenceofmind;allin[into]afluster;benervousandflustered;bepuzzled;beperplexed[upset];beconfusedandhysterical;bethrownintoconfusion;bealarmedandnervous[confused];fallintoaflutter;mentallyconfused;findithardtoconcentrate;haveatroubledheart;loseone'sbalance;loseone'smentalpoise;ontheanxiousseat;One'smindisin(a)tumult.;withaheavyheart
