Originally Posted by Seabirdanne

Take a break. Do something simple and enjoyable and/or relaxing for a while. Don't underestimate the power of mindless concentration -- jigsaw puzzles, word games, etc. I have a friend who's in her fifties and she gets out coloring books and colors! Take care of a pet, a plant, or a loved one. Focus (gently and non-critically) on something other than yourself.