Indeed. And learning to read one's own emotional states as they
   occur is a very powerful tool for their best usage. Noticing
   their physical effects is VERY useful. For example: That little
   knot that suddenly appears in the stomach seemingly out of
   nowhere is, to me, the conclusion of an algorithm that's been
   processing in the background. Stomach wrench, a feeling of
   dread. "No heart attack? Ok What is it?" Hungry? Thirsty? No. Oh
   yes, I was supposed to pay that fucking bill. Ok, got it. Whole
   process takes less than 6 seconds, sometimes shorter. Works
   well.