I've gone from 210 to 225 !!! all water baby!! I hope??? 
hope is for religious ppl and obama voters
the reality, and i read plenty about this topic, all the research out there i could find,looks like this.
in the best case scenario, you have been depleted of carbs before the holidays.
then some 6lbs will be glycogen and it binding water.
if you didnt have a shitting yet, then add another absolute maximum 6lbs of gut wasteage, but this would make you feel like bursting.
the rest will be fat.
if you dont eat carb for few days youl lose the water weight, and whats left for surplus if fat.
think cant gai 2lbs of fat in few days?can easy be done, easiest way to eat endless carbs when glycogen stores are already full.
happens quickly, theres been test with radiation put into the foods to trace when it end up in fatcells etc.
now, if you werent carb depleted before holiday and gained 15lbs, well, lol, you know the story.
