Well, I am in day 11 and feeling good.
The cough and black phlegm (yuk) have eased up a bit even though I still have a hack from time to time, so I am really feeling the benefit of all that extra oxygen now.
The little health problems (I think it's simply bodyshock that it's not getting what it's used to) like a cold, mouth ulcers and digestion problems have fully gone away now (fingers crossed).
Better than that, and more confidence boosting.... people are starting to notice the difference in me. Even smokers notice that I look better, have more energy and am generally a better version of me.
Non smokers tell me all of that, and the fact that I smell better.
Best of all? It's raining today and I keep seeing the smokers coming back from a fag break dripping wet. It's amusing me no end!