calories in/out debate

I know that lots of people are convinced that weight loss is about calories in/out and I know that that holds true for the majority of people. But I have to wonder about us Cushies. I don't think that it is a matter that we have a really slow metabolism.

But the thing is, it doesn't matter how much I eat or don't eat. The calorie in/out would hold true if I gained massive amounts of weight on 1200-1500, when I couldn't lose on 1200, 1000, 800 or less than 700 calories. (I did gain 10 pounds in a week at 1000 calories, but that was one week.) It is entiely possible that my weight gain/loss has been only water, which is fine on one level because it lessens my edema problems. But not fine for why I had WLS. If my metabolism was truely that slow, I wouldn't metabolize medications as fast as I do, and I would gain constantly.

But as for low calories, I just don't see how other people can function on sub 700 long term. I will give you that it is entirely prorbable that I entered into a deep Low during the month I was too restricted. But I think the lowered calorie intake made the Low worse.