suffering vs throes

suffering and throes both are nouns.

Word	Noun	Adjective	Verb	Adverb
suffering	Yes	Yes	No	No
throes	Yes	No	No	No

As nouns, throes is a hyponym of suffering; that is, throes is a word with a more specific, narrower meaning than suffering:

Other hyponyms of suffering include agony, torment, torture, discomfort, irritation, soreness.

suffering (noun)	throes (noun)
feelings of mental or physical pain	violent pangs of suffering
psychological suffering
a state of acute pain
misery resulting from affliction

suffering (adjective)	throes (adjective)
troubled by pain or loss
very unhappy; full of misery