biliousness vs health problem

biliousness and health problem both are nouns.

Word	Noun	Adjective	Verb	Adverb
biliousness	Yes	No	No	No
health problem	Yes	No	No	No

As nouns, health problem is a hypernym of biliousness; that is, health problem is a word with a broader meaning than biliousness:

biliousness: gastric distress caused by a disorder of the liver or gall bladder
health problem: a state in which you are unable to function normally and without pain

Other hypernyms of biliousness include ill health, unhealthiness.

biliousness (noun)	health problem (noun)
a disposition to exhibit uncontrolled anger	a state in which you are unable to function normally and without pain
gastric distress caused by a disorder of the liver or gall bladder