Eating For Two???

Okay So tonight I went to a Christmas party. While trying to find something to wear it seems that things I was wearing last year around this time have become pretty tight.
Unfortunately I have gone up a size since my paperchase journey. Maybe even eating for two even though only one of us is benefiting from the calories and sadly its not Abby. So for all you other stressed out people in " Adoption Land" anyone else have this problem???