text: Q:
  
  A word to describe the feeling that you are forgetting something?
  
  Is there a word (or short phrase) that describes the sinking feeling that one is forgetting something, but but doesn't know what the "something" is?
  For example, I'm looking for a word that describes the following feeling: Leaving to go on holiday, and two hours into your journey you feel sure you have left something important at home but just can't think what it is.
  
  A:
  
  Would a "nagging feeling" or "lingering doubt" suit your purpose?
  
  