I guess this kind of disorder would be common more in females than males. Personal experiences have shown that females have the tendency to fret over little things.
How you think you look above actually looks like a better version of you as far as aesthetic is concerned. This is my personal opinion though. I love my women with a bit of flesh, really.
Very common among females, most don't even know they have it. I didn't look bad when I was big but I just saw myself as obese. BDD even goes beyond being insecure. Right now, I don't even care..lol. Anything goes, moderation is key