I don't really feel that different. I'm still me, 100 pounds lighter, but I think since I still perceive myself as fat, I actually don't feel any different. I can get around a bit easier, maybe, and be more active, but that's it. I'm actually surprsied in some ways that so many people have commented on my weight loss. I was so used to carrying the extra weight, that it didn't really register - either before or after I lost it.
But NOW? Now I'm getting to the point where I'm going to move from being really fat to just on the heavy side, and that's tough. Scary. Visible, even. Yikes.
I am sorry that people have treated you as though you were invisible. I don't know if it's something about your own perception of yourself. But I can say without any hesitation that you are beautiful no matter where you are, weightwise! We all are - it's just a matter of accepting that even when others can be cruel about appearances.