Katie -
Stress can definitely put you through the wringer, and can be horrible for weight control. Hopefully whatever it was that caused your stress has calmed down.
Do you have a plan in place? Most of us find that, to succeed at losing weight, you have to have a plan in mind...some sort of formal eating and exercise goal. If you do have a plan, we probably have a forum for it...everything from Calorie Counting to South Beach to Atkins to Weight Watchers to Jenny Craig...well, I could go on, but you get the point. And if you haven't picked a plan yet, browsing will give you a great idea of what is out there.
Anyway, stick around - can't wait to hear more from you soon!