guilt feelings vs guilty conscience

guilt feelings and guilty conscience both are nouns.

Word	Noun	Adjective	Verb	Adverb
guilt feelings	Yes	No	No	No
guilty conscience	Yes	No	No	No

As nouns, guilt feelings and guilty conscience are synonyms defined as:

guilt feelings and guilty conscience: remorse caused by feeling responsible for some offense

Other synonyms of guilt feelings include guilt, guilt trip.

guilt feelings (noun)	guilty conscience (noun)
remorse caused by feeling responsible for some offense	remorse caused by feeling responsible for some offense