Gained some back and worried where this is going :(

I kinda let go a bit over the Holidays and then again on a business trip last week. I'm learning that when it's one of those few times I can't log, I mentally work on looking forward to logging again. That way when I do get home or stop with the binging, I'm actually relieved to get back to logging, even if the excess intake doesn't stop immediately. I personally find the structure of logging and, in particular, pre-logging and planning my meals, takes away that slightly panicked feeling that I'm going to pile on the pounds again which you seem to be experiencing. It works for me. And I've figured it just takes practice to cope with these moments where we do eat more than our body needs.

Oh, and you're human. Enjoying the moment, whether it's your birthday and you choose to enjoy it with food, is perfectly normal IMO. You shouldn't feel guilty. Guilt doesn't help. It's a worthless emotion. The cake was lovely and you ate it. You'll probably do it again next year, but you'll have had a whole year of practicing what to do.

I think it is a bad idea to judge your weight on the actual number your scales is showing. The variances due to water, poo, pee etc. just make a snapshot-in-time weight quite meaningless. Your weight trend is a much more reliable figure to work with and I would recommend signing up for something like Trendweight to keep an eye on that. It works for me. If you were to over-indulge one day, then make up for it over the next week, you wouldn't see any difference to your weight trend and it might prevent you needlessly freaking out.