I've had that happen to me as well: I'll eat but be too lazy to write it in my journal so I started recapping in my head what just happened instead of writing it down if that makes sense.

The problem with drastically reducing your eating is that you are bound to break from it and binge. Have you tried eating smaller portions more frequently? I think the biggest help for you would be finding something to kill the time between the times you eat. Are you an emotional eater?