Is my body telling me this is it?

Ok... Here’s my question.
I started working out and eating well diligently since May of 2009. I reached below my goal weight (which I was very happy with) approximately 7 months after starting my journey. Recently, I went up a couple of pounds (I guess because now I don’t want to weigh myself) and my clothes, although not to small, are fitting just a tad bit tighter than previously. After reaching my goal weight/size, I upped my calorie intake and reduced my workouts. When I noticed the changes I went back to my former diet and resumed my workouts. Now, I have not been able to get back down to my former smaller size (which is about a 2-4 difference). I have tried taking a break and resuming dieting. I have increased my workouts to an hour a day and drinking plenty of water. My diet consists of plenty of fresh fruits, vegetables, lean protein, healthy fats and minimal starches (bread, cereal, etc. which are always whole grain). My workouts include high impact aerobics twice a week, running once a week, weight training twice a week and yoga once a week all for about an hour.

Is my body telling me that this is the weight it’s most comfortable? Because I would figure that with all that I am doing, the inches should still be dropping off.

Thanks in advance for your advice and comments.