Psychological Changes

I am a psychotherapist who had a DS in December,2004. I am interested in conceptualizing the psychological changes that accompany and or are a result of the surgery. Besides the obvious sense of well being from loosing all that weight, what else have people noticed? What changes have occured in your relationships? How has your life improved? Has it improved? Do tell. I have by the way lost 200 lbs and had no trouble keeping it off. The body image is still at times an issue for me. Sometimes I forget I am thin and impose old ways of thinking and feeling on myself. Would love to hear what others have experienced.