pain sensation vs somatesthesia

pain sensation and somatesthesia both are nouns.

Word	Noun	Adjective	Verb	Adverb
pain sensation	Yes	No	No	No
somatesthesia	Yes	No	No	No

As nouns, somatesthesia is a hypernym of pain sensation; that is, somatesthesia is a word with a broader meaning than pain sensation:

pain sensation: a somatic sensation of acute discomfort
somatesthesia: the perception of tactual or proprioceptive or gut sensations

Other hypernyms of pain sensation include somaesthesia, somatic sensation, somesthesia.

pain sensation (noun)	somatesthesia (noun)
a somatic sensation of acute discomfort	the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs
	the perception of tactual or proprioceptive or gut sensations