I'm SO TIRED. I can hardly move. I've hardly been able to move all day. I'm too tired to speak, too tired to make any kind of facial expression, too tired even to think. I feel like I'm a hundred years old. My whole body is heavy and my heart hurts. I'm afraid my boss is starting to notice how slowly I'm moving, how little energy I have and how that's affecting my performance at work. I don't know how much longer I can keep this up. I want to sleep forever. I just can't do anything else.