Congrads on doing both. I am also on Atkins it only been 4 weeks. I too tend to go up and down on the scale. I'm in my 9th week of quiting smoking and I have notice I smell things that I had never seem to smell. I mean my sense of smell have gotten stronger. Now I also really notice how people smell after they had a cig. Yike (did I smell like that?)
Good luck to you all.
Remember take it one day at a time. We can do it.