back to insomnia

You know what’s really fantastic is lying awake at 2:30 in the morning, trying to figure out why I feel like a piece of shit. I mean, I feel like shit, obviously, with the dizziness and the nausea that comes from not sleeping for a couple of days. But why do I feel like a piece of  shit? I fed my cats. I went to work, didn’t screw up or underperform. I didn’t get into any arguments, I didn’t say or do anything rude or unethical. So why, god, do I still have this leaden guilty-and-wanting-to-die feeling without any outside circumstances to justify it?