In addition to the possibility that your Depression is because of the autointoxication going on until the ropes passed, is the possibility that some additional sunlight will make you feel better. SAD is coming into its own right now. Get sunshine to your eyes, get a SUNbox to provide full spectrum light.
Craving carbs and wanting to snuggle under the covers are prime symptoms of prehibernating behaviour, which heralds the onset of Seasonal Affective Disorder.