(n.) The state of being breathless or out of breath.

abrupt agog alacritous all agog animated anxious asthmatic avid breakneck breathing breathless breathlessness bursting to desirous didder disquiet disquietude dithers dyspnea eager errhine expiratory fidgetiness fidgets flutter forward full of life headlong heaving huffing impatient impetuous impulsive inquietude inspiratory keen labored breathing lively nasal out of breath palpitation pitapat pitter-patter pneumonic precipitant precipitate precipitous prompt puffing pulmonary pulmonic quaking quaver quavering quick quiver quivering raring to rash ready ready and willing respiratory restlessness rhinal shakes shaking shiver shivers short-breathed short-winded shortness of breath shudder sneezy sniffling sniffly sniffy snoring snorting snuffling snuffly snuffy spirited sternutatory stertorous sudden throb throbbing tremble trembling tremor trepidation trepidity twitter unrest vital vivacious vivid wheezing wheezy winded zestful