twinge vs twitch

twinge and twitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
twinge	Yes	No	Yes	No
twitch	Yes	No	Yes	No

As verbs, twinge and twitch are synonyms defined as:

Other synonyms of twinge include nip, pinch, squeeze, tweet.

twinge (noun)	twitch (noun)
a sharp stab of pain	a sudden muscle spasm; especially one caused by a nervous condition
a sudden sharp feeling

twinge (verb)	twitch (verb)
squeeze tightly between the fingers	make an uncontrolled, short, jerky motion
cause a stinging pain	squeeze tightly between the fingers
feel a sudden sharp, local pain	move or pull with a sudden motion
	toss with a sharp movement so as to cause to turn over in the air
	move with abrupt, seemingly uncontrolled motions