Originally Posted by
ProfessorD 
I'm feeling off today. Sort of tired, not focused, a bit of a headache/light headed. I've tried everything: eating a protein snack, having more coffee, drinking tons of water. I feel like my body wants something sugary, but I do not want to eat sugar! So I'll complain here instead
If you've recently cut carbs by a lot it could be electrolytes...try something salty with a full glass of water. Headache and light headed sounds like electrolytes. A pickle, a half teaspoon of salt in water, some low-sugar Gatorade. I have olives on hand for that.