I know how disappointing it feels to have done so well for so long, and to suddenly find yourself feeling as you did when you first started to control your diet. It doesn't matter about all the things you have learned, - you want that biscuit/ bread/ chocolate/ hot cross bun. I find it happens to me when I have some sort of emotional upset, but I agree with Antechinus - there are "active" fat cells that pump out hormones. You will get through this sticky patch. It might help to try some new recipes in case you've got into a bit of a food rut. I have found lots of lovely new foods to try and lots of nice low carb snacks, both fron recipes online and in books. The only other comfort I can add, is that I found that these craving intervals grew less intense and further apart over time. If this is your first bad patch, you have done extremely well, and hopefully it will be some time before you experience another.