Cannot Get off This Weight Plateau

  Around October right at the Half Marathon I was weighing about 140-141 lbs and was excited thinking that soon I would be breaking below 140. Unfortunately after the Half Marathon I had to slow my running back down, and then came the holidays and all the eating. Since December I have been stuck at around 143-144 lbs and I can't seem to shake the 3 lbs, it is driving me crazy. I look in the mirror and I don't really notice any difference to October but the scale says so. I have been on this salad diet now for about 2 weeks, trying to stick to under 1,700 calories unless I run then I will aim for 1,900 calories. I was really hoping to be around 134 lbs by the time the St. Louis Half in April but it doesn't look like it is going to happen. Oh well.