I have never been extremely overweight, just a little fuller around the waist than I would prefer. I started biking about 100 miles a week soon after ER and dropped about 15 pounds. Unfortunately, once my body adjusted to the increased excercise I gained back about 10. I know what it would take to drop those 10 permanently - cut out chocolate. Fat chance
This is my situation almost exactly. What's up with that? I run/walk nearly every day. I get more excercise now than ever before, but have been doing it long enough that the affect on my weight is nil. I refuse, however, to give up my evening ice cream, so I also may have to settle for the "fullness" as you describe!