Well I meant more so recently. A lack of sunlight can often lead to mild depression which people express differently. Some don't eat, some eat more, some drink, etc. You are in a part of the country that has fewer "sunny days" in the winter, so it was just a guess.
I think you should try to get yourself back onto the eating horse ASAP. One of the best foods to eat is yogurt (make sure it contains acidophilus-it'll be on the list of ingredients and most yogurts have it anyways) because it aids in digestion, makes you feel energized, and contains lots of calcium and protein for its calories.
You should also strive to have one Vitamin C rich food per day (an orange, a serving of blackberries, or any other citrus fruit).
Then, gradually extended your diet to include some whole grains (oatmeal, granola, etc) and more milk.
The trick is to eat small amounts consistently, and then gradually add more foods into your diet. It's also critical that you don't eat when you feel a craving coming on. My hunch is that that is when you binge. Instead, stick to your routine for a while. If, after a couple weeks you aren't able to get back into the natural rhythm of things, call a doctor. There's no sense in denying professional help when it's needed.
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rpaloalto said, consult diet planning websites to get an idea of what makes certain foods better than others. To get you started on the right path, I recommend low fat yogurt, fruit (lots of it!!!!!!), low fat milk, walnuts, oatmeal, and of course, veggies. I don't know how often or how much meat you consume, but it might be best to lay off for a while. Meat can cause all kinds of problems if your digestive cycle is out of whack, and I think yours certainly could be.