Chocolate releases your "feel good" hormones. I ate a bunch of chocolate last night myself and feel fantastic, though I normally eat pretty low carb on most days, at most a bowl or berries or something. I don't think it's the sugar that helped as much as and the release of positive hormones. Your body replenishes hormone levels when you sleep, so you should feel more recovered and awake. If I train 3-4 days in a row, dark chocolate is my favorite to help me get my energy back.

Wow. I had the exact same results. I waaaay over-indulged in my Easter Lindt bars, and I was super hyper and happy all day Monday.

I have the answer to this one. Unfortunately.

It means you have some problems with your liver (like sluggish liver or something).

I was trying to figure it out for a long, long time. I have been on Paleo since October 2011. And every time I eat 100% good Paleo food, I feel very tired and fatigued. After a sugar binge I am all happy and energetic.

Chocolate, fat and sugar have some kind of effect on your liver.

All my blood tests came back perfect, by the way. It does not show up in your blood. Are you gluten intolerant? Because I am. Our liver has been dealing with toxins all our lives and now it is giving up on us. I did not learn it on my own. I had to see an alternative doctor because I could not figure it out on my own. But the results I received are more convincing than any mainstream medicine.

How to treat it? I am waiting for my supplements to arrive in the mail. As soon as I start taking them, I will let you know the results.