Hi Audrey,
Sorry to know you have a cold--that's happened to me in past quits, too. The body seems to like to expel all the yucky stuff in dramatic ways. I'm always worthless the first week--just a total bum, which is a 180 of my usual hyper self.
Extra time: I am working more, cleaning more, working out more (I have a home gym), doing yoga (stretching and breathing help a lot), listening to meditation tapes, blasting bad 80's music, shoveling snow, walking the dog more, watching movies, organizing house stuff, reading, planning healthy menus, playing games online, checking in here.....
Don't be too hard on yourself about the weight. That excuse has sent me back to smokes many times. It's not a real solution. Try to make good food choices and eat stuff that supports your immune system. I am up 2 lbs in 2 weeks but feel amazing.
And I know this sounds clich�, but exercise makes all the difference. I am walking/jogging by 7:30 each day. I walk the dog in the afternoon (I'm in cold weather, too). No matter how slow you need to go, just move. If it's too cold, go to a mall and do laps.
Congrats on 7 days, that's awesome.