Part Of Another Consciousness

So I’m at a loss. I overeat. Mostly at night, after my son goes to bed, when work is done. I can follow a plan up until I go to bed. Then part of another consciousness takes the wheel - maybe I yield willingly. Or becomes so easy to rationalize under snack after snack. Often I am laying there reading or watching a show when the first thought comes. Swiftly, the thought of food - sweet food, savory food - is at the forefront of my mind. After a good day I think to myself, “Fuck, I’m going to eat…no, I can’t do that.” Time passes, and in one motion I sigh, turn on the light, and get the food. I get the food. It’s all over after that, until the next morning, when the plan is back in place. Is this an eating problem or the symptom of something else? I do have a history of depression and anxiety.