vertigo vs dizziness

vertigo and dizziness both are nouns.

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

As nouns, vertigo and dizziness are synonyms defined as:

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

Other synonyms of vertigo include giddiness, lightheadedness.

vertigo (noun)	dizziness (noun)
a reeling sensation; a feeling that you are about to fall	a reeling sensation; a feeling that you are about to fall