Oh poor you I know how you feel
although because I was sick at the beginning of my pregnancy and then always hungry (like majorly hungry) I havn't swung back into the bad habits.

I have noticed though denial of my clothes size (non maternity)
some things I can still fit in but only in a size 14-16 so even if I have really liked the clothes or they were comfortable I have refused to either try them on or buy them because in my mind I feel like I've just gone back to being fat

It's a hard mind-set to shake but you will get through it!
just remember you will have a beautiful baby and you can't not eat cause bub's needs food

Good luck xx