I doubt it, hun. :hug99: The 3 bars might have kicked you out of ketosis, but not by much (depending on what sort of bars they were). If they were choc mint, peanut or cranberry, they have pretty much exactly the same number of carbs as a milkshake.
If they were the chewy bars (orange, malt toffee, chocolate), they might have an effect but not for long. We're only talking about having 30g of carb more over the course of a day than you normally would have and you'll burn that off in no time.
I'm not convinced that it's the extra carbs in some of the bars that give people the munchies anyway. I think it's more to do with the fact that you've chewed something and made your stomach think it's going to get more, LOL. Plus you really do need to drink extra water with them, otherwise you don't feel quite as satisfied after having one than you would after having after a soup or shake with lots of water in - and that of course is going to make you feel hungry.
As for the chicken - minimal damage, hun. Look for the carb count on the packet as a guide. Anything from 0 carbs to around 0.5g carb per 100g [strike]
isn't going to kick you out of ketosis.[/strike] is pretty safe
No more fretting about it, okay? :hug99: If you can stay away from the monster carbs, your weigh in won't be in the least bit affected. Remember - you don't need to be in ketosis for Cambridge to work - you just need to stick to the plan and the calorie deficit will do the rest!
Edited to adjust what I originally said about the chicken - even higher amounts of carbs are unlikely to kick you out of ketosis, but plain, unadulterated chicken is best.