Razzle posted a good answer to your question here
http://www.atkinsdietbulletinboard.c...-fat-cell.html (The defense system of the fat cell)
If you haven't added anything new at all and think you may be out of ketosis...you can always post a menu and we can have a look to see if there are any red flags in there. Also list your stats...age..height..weight and goal...that sort of thing.
Great work so far! Read the book and the stickies about OWL and consider moving up the rungs.