What could be causing higher than normal urinary cortisol? That’s typical of a VLC diet. How long did you VLC and how low did you go? That’s one of the classic symptoms of long-term VLCing. Could also get that short-term if you’re vulnerable.
How’s your BG control? Cortisol will also dysregulate BG control. Some Paleo think it’s physiological insulin resistance. But you can’t have PIR when you’re eating enough carbs — that’s usually dysregulated cortisol affecting your insulin secretion.