Lethargy:  when you have no desire to move or to do anything.  At the very least, your world is moving in slow motion.  What is the cause?  Lack of motivation?  Overtiredness?  A blockage of some sort, to be sure.  Whatever the cause, it is not your natural state.  You cannot help but notice that something is not quite right.  This is because the Life Force that animates the body seeks balance, and when you are out of balance, there is an innate awareness.  Pamper yourself until and after you find the cause.  That lethargy is telling you something.  There is another voice that will tell you how best to restore equilibrium and once again find your innate peace.  Are you listening?