To breathe hard
To utter in a breathless manner
at the last gasp
She caught her breath in a startled gasp of pain.
Pain made her gasp as blood welled and spilled.
She stepped over it, slipped on pebbles, and dropped with a gasp as pain slammed through her knees.
At Carmen's startled gasp, he said he didn't think that was an issue because they brought him back quickly.
She woke with a gasp and threw back the covers.