Body conscious

So, this might seem kind of weird but I’ve been struggling with the way my body looks. I’ve always been “overweight” Big thighs, flat stomach but have some fat on me. I’m having a hard time adjusting to the idea of gaining weight. I’m 5’7 and 222lbs. I don’t look it, at all. I ate extremely healthy pre-pregnancy and actually deprived myself of foods I really loved. Now, I’ve been giving into cravings. Blaming it on my little babe. I’m only 7 weeks... I can’t imagine how much more intense the cravings may get. What can I do to lessen the gain? Or lessen the cravings? My OB advised only an 11-20lb weight gain...I know I shouldn’t be worried about this. But I think I have some kind of eating disorder or body dysmorphic disorder.