Follow-up is essential to success. But I think your mind is trying to stay on track. It's common in most changes from routine. You wired your brain into eating a certain amount at a certain time, or even to eat when associated with any event.
You can take away the food, but that doesn't take away the desire. If the desire isn't addressed, it kicks the brain into overdrive, asking why why why where is it I want it, and it won't stop until you answer its nagging question.
The way I deal with a nagging brain is to participate in the conversation. It's like dealing with a screaming toddler. They never stop screaming until you engage them.
How you do that is particular to you. Sometimes the only solution is to nibble on something safe and hope that's enough.
But a lot of the time it's better to scream into your pillow until you wear yourself out. The food addiction is more powerful than alcoholism because even though you can stop drinking, you can't stop eating.
I use self-talk, focusing on affirmations, but negatives work, too. The classic tool of displaying a pair of 2X jeans or a dress you could now use as a pup tent are great visuals. But it may be that nothing works except aching and obsessing, letting it exist and feeling the pain.
Just don't give in to it.
Cravings are part of life, in every category. Try not to give more power to a craving than to an affirmation.
We're here for you. We understand.