I am reading this great book (see post from yesterday) that states that if you were at one weight for a while your body will remember that and thus you will "stall out" at that weight for a short time. I was stuck at 167 for a long time because I was at that weight for a few years after the birth of my 2nd child. My next plateau will probably be at 148 lbs where I was for a while after the birth of my 1st child. So, this is normal. Sometimes cutting back on certain foods can help or adding exercise. Eventually, it will break.