For the first week and a half, my co-workers had said I was a bit more of a grump than usual. I figure thats possible but I didn't really feel like I was. It didn't feel at all like when I had gone long busy periods without a smoke anyway. I just wrote it off as being due to my no longer taking in all the other addictive substances present in analog smoke. It seemd to pass though, as they commented at the 2-week mark that I was back to my normal self.
At 2 weeks on, I noticed my lungs had cleared up, no more waking up with fluid bubbling deep in my chest. Foods started to taste better and sense of smell either returned or perhaps became a super-power.
3 weeks plus and I notice I am actually remembering my dreams! I havn't actually woke up and remembered having any dreams at all for quite a long time now. In fact, in the last 5 years since I went 'clean and sober', analogs being my only vice, i've only been able to sleep for maybe 4-6 hours, always waking up well before the alarm clock. Now i'm sleeping deeply and smacking that 'snooze' button for a good half hour before I crawl out of bed. Don't know if thats good or bad, but i'm definitely well rested.
I'm at 6 weeks now since my last analog and havn't noticed anything different really since the 3-4 week mark. There may be personality changes that I don't notice in myself, but if so, the people around me on a regular basis havn't said anything. Also, not once since I started vaping did I ever crave, or feel like I needed to light up another analog. It may be that, for me, vaping was such a perfect 'drop in replacement' for smoking in my life, that I forgot all about the analogs.
This has been a description of my own experience since I started vaping and quit smoking on the same day back in December 2012. Of course all people being different, mileage may vary wildly.
Excercize? Whazzat! I havn't quit being a couch potato yet. ONE THING AT A TIME!