Stress can be a pain in the a**. Before I was banded beer,beer, beer, and food was my answer but I now days it's excerise and Candy Crush! My advice is find another outlet then food. I argee with everyone suggestion but you have to find something that works for you besides food. I know old habbits die hard but you can do it. Here is some articles that may help
http://www.sparkpeople.com/resource/health_news_detail.asp?health_day=678171
http://www.sparkpeople.com/blog/blog.asp?post=study_exercise_to_reduce_anxiety_and_stress
Good Luck