It could be that you're gaining muscle, which could alter how your clothes fit. However, I'd suggest giving your doctor a call anyway. Where do you notice the "weight" going on? A few years ago I had what I thought was stress-related weight gain, all coming on behind the abdominal wall in front, like as if I were pregnant, and it turned out to be a cyst, which led them to find ovarian cancer while it was still in Stage I. So yay! am cured. Am also now on the lookout for folks who mention stuff like what I only learned after the fact was symptomatic of ovarian cancer, which sometimes doesn't present any symptoms at all. It makes me a bit of an alarmist, but hey. :)

Also, yay cookies!