convulsion vs commotion

convulsion and commotion both are nouns.

Word	Noun	Adjective	Verb	Adverb
convulsion	Yes	No	No	No
commotion	Yes	No	No	No

As nouns, commotion is a hypernym of convulsion; that is, commotion is a word with a broader meaning than convulsion:

Other hypernyms of convulsion include disruption, disturbance, flutter, hoo-ha, hoo-hah, hurly burly, kerfuffle, to-do.

convulsion (noun)	commotion (noun)
a physical disturbance such as an earthquake or upheaval	the act of making a noisy disturbance
violent uncontrollable contractions of muscles	confused movement
a sudden uncontrollable attack	a disorderly outburst or tumult
a violent disturbance