ya well, it could be worse, I could post a picture of myself and make you feel a whole lot better. I think you look great, really.
I have a fat roll. I didn't realize I had this fat roll till someone pointed it out to me in a very mean fashion after they took a comment I made wrong. My fatroll is obvious, and your doublechin isn't! LOL Wow if you think that's a doublechin you've not been to the shopping lately.
LOL! :D