I think a lot of us who put on a whole lot of weight take a while to accept that it's happened by just not looking. I know I did this. You can quite easily avoid looking in full length mirrors, and stay in the background of photos, and kid yourself that you're not that bad. I think my real breakthrough came when I visited a style consultation to help me put together a new work wardrobe for my return to work last year, and she referred to me as a "big girl". I was quite shocked, and it really brought it home to me that that was just what I'd become - not just a bit chubby, but truely and technically obese. Good luck with it - it is so worth all the hard work!! :)