PMS

I agree wholeheartedly with the recommendations to eliminate sugar. I suffered from severe mood swings until I started having digestive issues and investigating--and eventually switched to--a gluten-free diet. In the process, I also eliminated sugar and I saw an marked difference. Throw in a bit of consistent exercise and you'll be a new person.

I am sure it is just coincidence, but I slipped into veganism, kept the cup of coffee or two a day, the dark chocolate, homemade cookies, and chocolate milk made with almond milk. I do do less of other carbs like chips/crackers/breakfast breads, though