I think it's quite normal to feel the way you do, the thing is is that you have to stop feeling bad about it afterward and worrying about it. With that, then you can have your cheat day and enjoy yourself. I have planned a cheat day for myself, so far it's for Easter, in which my family and I are going to a nice buffet. I've been there before and the food is just so delicious that I figure I owe it to myself. And there's nothing wrong with that. For one thing, my stomach is shrinking and I only can eat so much at a time anyway I have noticed. This is not knew to me so I don't feel guilty about it and I'm able without a doubt to get right back on plan after my cheat. I wish the best for you.

I'm getting the sense that you might be concerned about your ability to limit it to one day per month. If you're at all like me, that's legitimate concern, lol! Maybe you are "hungover" from the rich food. Now that you've lost so much weight, you body and brain chemistry are different. Even a single reasonable treat like you had won't be the same as before.