For me it was two days of pure h**l! I ate more on Xmas Eve and Xmas day than I have in total the week prior. My sister made 6 different kinds of cookies, appetizers were always out on the table and I gorged on bread and pasta and cheese and sausage and meatballs every day. And I had a disgusting fast food binge. Later that day, when I was left alone in the house, I ate all the leftovers from the previous nights dinner and then an hour or so later I was eating a full dinner with the family. I was going to leave the day after Christmas to drive my 6 hours home but after Xmas dinner I packed and hit the road. I needed to get back home, into my own controlled environment and get back on track.
I'm still trying to recover mentally and physically. That was the most out of control I have been in over a year.