Think long and hard. Is a giant cookie really going to make you feel better, or is it just going to taste good for a few seconds and then make you feel even worse? Are you actually hungry? Or are you sad? Tired? Lacking inspiration? Hunger isn't a feeling, it's a need. And feeding your feelings isn't going to make you feel better. A hug, a walk, doing something with someone you love who makes you laugh will make you feel better. Even a good cry would help. A cookie? Probably not. You think it will because for so long, food to you has equalled love and compassion - like cookies and perogies at Christmas or your mom, who loves you regardless of how you've messed up your life, and makes you a pie because she knows how much you love pie. But eating won't actually make you FEEL better.
ps- but if you're going to have that cry, for the love of god, go find a secret crying bathroom and do it in private. You're at work. There's no crying in baseball.