Look... I don't feel like shit when I get nothing done because I've been brainwashed by the ruling class to tie my self-worth to my usefulness as a slave.
I feel like shit because I have this reservoir of energy that slowly builds up throughout the day, to the point where—if I don't start draining it by doing stuff that requires spoons—I will lie awake at night wondering why I can't get to sleep, extending it into a viscious circle where i'll feel too tired to do anything the next day but still end up laying awake at night too energized to sleep