i had a very similar situation you were in. I did atkins a while ago and i stopped because i was in a little stall (where you stop losing weight for a period of time) I instantly went on the low fat diet and i just couldnt stand it! i hated it!! so i went back to atkins a week later and now ive lost more weight. Maybe you should try to loosen up and then go back to strict atkins dieting. Maybe if your body has such a drastic change, you can lose more weight, like i did