guilt feelings vs self-reproach

guilt feelings and self-reproach both are nouns.

Word	Noun	Adjective	Verb	Adverb
guilt feelings	Yes	No	No	No
self-reproach	Yes	No	No	No

As nouns, self-reproach is a hypernym of guilt feelings; that is, self-reproach is a word with a broader meaning than guilt feelings:

Other hypernyms of guilt feelings include compunction, remorse.

guilt feelings (noun)	self-reproach (noun)
remorse caused by feeling responsible for some offense	the act of blaming yourself
	a feeling of deep regret (usually for some misdeed)