numbness vs sensation

numbness

noun
  • Absent or reduced sensitivity to cutaneous stimulation. 

  • Inability or reduced ability to experience emotion. 

sensation

noun
  • A physical feeling or perception from something that comes into contact with the body; something sensed. 

  • A widespread reaction of interest or excitement. 

How often have the words numbness and sensation occurred in a corpus of books? (source: Google Ngram Viewer )