Learn That Word

Synonyms for Somaesthesia (same or very similar meaning)

WordNet sense 1 (the perception of tactual or proprioceptive or gut sensations):
somatesthesia, somesthesia, somatic sensation

WordNet sense 2 (the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs):
somaesthesis, somesthesis, somataesthesis, somatic sense, somatic sensory system, somatosensory system

From the ODE community, based on WordNetadd/edit