Polishrose is right BigMama,
It just ain't worth it.
What is the worst that can happen if you DON't eat the chocolate?
You will continue to feel tired and fed up but it will only last till the kids go off to bed! Then, you can go and have a nice hot bubblebath with a good book and think to yourself "I won, I didn't give in to chocolate, I'm gonna make it, Yippeee!!!"
What's the worst that can happen if you DO eat the chocolate?
Just exactly what Polishrose said - you feel a bit sick, guilty, disgusted, fat, hungry (cos you are out of ketosis), angry, lots of other megative feelings, worried about the next meeting, more likely to 'slip' again.
Is THAT worth a bar of chocolate? No Way!
You know what to do BigMama! I know you can do it! Ditch that chocolate!!