I know this may have been asked before...
Hey, ke4peo--I love your pic! The Doctor rules. From what you've written, it sounds as though you are decreasing your size as evidenced by a smaller waist. Don't be too hung up on the scale. That is a trap! Make sure the carbohydrates you eat are complex, such as whole grains, raw or steamed vegetables, and whole, fibrous fruits--no applesauce here! You could swap some animal protein for beans, lentils, etc.
The thing about exercise is that after a person has done the same routine for a while, the body becomes accustomed to it and is ready for a greater challenge. You might try increasing the weight or the number of repetitions, amping up the incline on the treadmill, etc. You want to sweat when you exercise, and feel that you've used your muscles well when its over. Then you get the pay-off of Endorphins! :)
I just had WLS last month, but I am in the healthcare field, so I'm not just making these ideas up! Best of luck to you in your quest!