We all too often underestimate the toll stress takes on us. Even though we handle everything we need to do, there is a very real emotional unease that can run beneath our awareness - and it has a real impact on us. Try to ease some of the frustration first as it will only add fuel to a frustrating situation. And of course some simple things like avoiding carbs/sugars in the evening especially.
Your symptoms also sound very similar to the horrible fatigue I experienced that was thyroid-related. I know you said a doc is out of the question, but keep it in mind for future reference. My fatigue was terribly debilitating!! It was tough to function. - Understatement!
Good luck Lacey. Let me know if you'd like me to share some things I did to turn my fatigue around.