I wanted to post an update for all of the new quitters here. I'm currently on day 41, and wanted to let you know that it does get much better. For me, the first three weeks were complete hell with anxiety, lack of sleep and even some depression. I've mainly kept to reading posts on here from others who have successfully stayed nicotine free, and upped my workout intensity/frequency. The "fog" seemed to lift somewhere around day 30, and the anxiety has subsided, a lot. There are good days, and bad days, but that is life, I guess. Stay strong, and know why you are doing this. I'm quit with you all today.