, the "SBD Flu" is kind of a joke name. It's our way of referring to the myriad symptoms of detoxing from sugar (headache, crankiness, tiredness, etc.).
, while I understand the lack of interest in eating food that doesn't appeal to you, I think your experience in P1 is showing you some things you didn't know--that you are finding emotional satisfaction in food (which isn't where we can find any lasting emotional satisfaction) and that carbs gave you psychological/emotional enjoyment.
That's not surprising, since simple sugars/bad carbs raise levels of chemicals in your brain that make you feel happy, calm, confident, and more. But those effects don't last, driving you to eat more and more sugars in hopes of getting the same "high" you used to have. In other words, it becomes an addiction. Many, if not most, of the people in our forum have had this experience and that's why they're here--in other words, you're among friends!
As to the emotional part, you may want to check out Geneen Roth's exceptional book, When Food is Love
. She addresses the issue very well.
In the meantime, do your best to make your meals as palatable as possible
, while including as many good carbs as you can within the Phase 1 guidelines. Try to have at least one of the following with every meal: tomatoes, bell peppers, beans, legumes, and low-fat (LF) or fat-free (FF) dairy. This helps with the detox and will make you feel better.
Check out our recipe forum for some awesome recipes to help make meals more exciting. Some of my husband and my favorites are the Taco Bake, Chicken Divan, and White Bean Chili. The Peanut Butter Cup makes a great dessert in Phase 1, too.