vertigo vs giddiness

vertigo and giddiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
vertigo	Yes	No	No	No
giddiness	Yes	No	No	No

As nouns, vertigo and giddiness are synonyms defined as:

vertigo and giddiness: a reeling sensation; a feeling that you are about to fall

Other synonyms of vertigo include dizziness, lightheadedness.

vertigo (noun)	giddiness (noun)
a reeling sensation; a feeling that you are about to fall	an impulsive scatterbrained manner
	a reeling sensation; a feeling that you are about to fall