I said 1200 calories, but I ate bread and halva at night

I've been logging calories on the app for about a month and a half now, and it's starting to become quite obsessive; I'm even recording the sugar I put in my tea. During the day, I manage to control myself, but for the last 4-5 nights, I've been experiencing real cravings, going to the kitchen and eating bread with cheese, then halva, and sometimes leftover rice; I can't stop in those moments. The strange thing is, sometimes the next morning I see a loss on the scale, which makes my brain go into a silly relief mode, thinking "I guess this is how it works too." Is this a normal fluctuation, or am I slowly drifting towards something unhealthy? I'm not sure if I should see a doctor.