Awesome! Four weeks is a milestone-congratulations! I'm at a week and a half, and I've already gained 4 lbs! Ack! I'm going to have to start walking the dog further and faster!
Wow, 4 weeks!!! That's awesome! Keep it up! I'm about 2 weeks behind you. How does it feel to be a nonsmoker? Congrats again and let us know your progress.