Not that I doubt you, but I'm surprised that you don't notice the changes. That's a range where there are huge differences in everyone I know who's managed to do it - particularly in the face, but in the body as a whole. I've only managed to drop 40 so far (260-220), but even then the difference in the gut is visible (even if many other areas aren't as much as I could dream, to be fair to your point).