Why am I so hungry?

I have clinical depression and for the most part it's managed very well, through therapy, medication, etc. But I just recently had a flare up again that I can pinpoint the minute it started due to some external stressors that have been piling up.

I don't want to hang out with friends, I can't find the energy for any hobbies, and all I want to do is sleep. There's one symptom I'm not so familiar with though.

I don't remember being so hungry the last time I was depressed. I ate a full dinner tonight, bigger than what I usually eat, had a cup of frozen yogurt after, and now that I'm home I still feel like I could eat a full meal. Have you experienced this symptom before, and what do you do about it?