I have been religiously logging in my food and always have a deficit of at least 100 calories that I don't eat. I also have been walking over 12,000 steps and getting extra exercise calories but I have not been using them. I originally started off and lost 8 pounds over 3 weeks but this last week the scale has said that I have gained 5 pounds and I know that I have not eaten that much to gain the 5 pounds. I am sooo stressed and don't know what is going on. Is it water retention? I did have some Chinese food last week, is it weight from my period? HELP!!!!