I used to find sometimes that my weight would suddenly go down a pound one day and up two the next, and it always seemed to be on weigh in day that it went up, so now I just do it on the morning of club day so I'm prepared for the shock or nice surprise.
Bread and butter has always been my 'thing' which I want to grab when I'm hungry, and it's bread that sometimes makes me feel bloated, but I can't help it! I usually treat myself to a bit after I come back from weigh in, because it doesn't count then does it , and with benecol spread because it's good for your heart!! Don't do what I did and buy a breadmaker.