I think EVERYONE in Houston put on a little bit of weight during Ike (all my family is there, and they were complaining about it to me! I'm in Baton Rouge...I felt the wrath of Gustav, so I know exactly where you're coming from.. :P)
All you can do is work hard, and if you don't make it to your goal, at least you'll know that you gave it your all! And that's what really matters, right?
Best of luck...keep truckin!