An uncomfortable sensation of one's own heart beating rapidly or irregularly, often caused by medical conditions, exhaustion, or intense exercise.

to have lingering fears or trepidation after a dangerous or traumatic event has passed; still feeling shaken when thinking back on a past danger

to pound or throb, especially a rapid heartbeat caused by fear, excitement, or nervousness; a palpitation

to tremble or have one's heart palpitate with fear; shaking in fear

fear that remains after a frightening event or danger has passed

to shake or shudder with fright; to tremble because of intense fear or anxiety

The memory of a frightening experience still lingers; to still feel shaken after a scare.

shocked and filled with fear; terrified