I don't know about your bloodwork, but make sure you read all of the Newbie/beginner threads that are available, especially the ones about carb flu.
A few things I know from experience or that worked for me:
As for chocolate cravings, you'll know if you are craving chocolate if you can eat unsweetened baking chocolate. If that doesn't sound or taste good, it's just a carb craving, which you'll need to learn to ignore.
Start by focusing on whole foods- meat, vegetables, and fruit. No juice. Atkins shakes are not food. If you aren't hungry enough to eat an apple, then you aren't hungry, though I need to put some cheese or almond butter with that.
Drink water. In the transition phase, a lot of people confuse hunger with thirst. (I sure did, and still have issues with it.) If you are hungry, drink a glass of cold water and wait 15-20 minutes. If you are still hungry, then eat something.
Serve up on your plate the amount that you think you will eat. Scrape half of it back. Eat that and wait 20 minutes. If you are still hungry, have some more.