throb

a deep pulsating type of pain

an instance of rapid strong pulsation (of the heart); "he felt a throbbing in his head"

pulsate or pound with abnormal force; "my head is throbbing"; "Her heart was throbbing"

expand and contract rhythmically; beat rhythmically; "The baby's heart was pulsating again after the surgeon massaged it"

tremble convulsively, as from fear or excitement