I totally agree that stress can play havoc! It might be water or it might just be your body doing a reset of some sort. One thing I try to remind myself is that even if the scale doesn't move the direction I want, I'm eating healthier and taking better care of myself nutritionally. It can be a hard idea to hang on to sometimes, but it often keeps me from getting totally discouraged. Just think of how yucky you'd feel physically if you were under so much stress AND eating badly. Keep up the good work. The results will show on the scale soon!