Possible Clues:

• Painlessness
• Controlled numbness
• Dash back to rescue head of government in China, say — it's painless
• Fermented ales again causing no pain
• Don't feel the pinch perhaps when all look back for African leader is example to Lana
• Son not right in an African country as result of medication?
• Not feeling pain in part of alimentary canal that is gas-generated
• Pain relief by drugs
• Pain relief an Oriental almost needed, nursing broken leg
• Inability to feel pain