throb vs shudder

throb and shudder both are nouns.

Word	Noun	Adjective	Verb	Adverb
throb	Yes	No	Yes	No
shudder	Yes	No	Yes	No

As verbs, throb and shudder are synonyms defined as:

Other synonyms of throb include shiver, thrill.

throb (noun)	shudder (noun)
an instance of rapid strong pulsation (of the heart)	an involuntary vibration (as if from illness or fear)
a deep pulsating type of pain	an almost pleasurable sensation of fright

throb (verb)	shudder (verb)
tremble convulsively, as from fear or excitement	shake, as from cold
expand and contract rhythmically; beat rhythmically	tremble convulsively, as from fear or excitement
pulsate or pound with abnormal force