I gave up smoking last April (I've passed the anniversary by a week) but for a long time I kept saying I haven't felt right since I gave up. Looking back, I can now see that I gave up cigs, but I took up mint imperials. I ate loads and loads. In January I saw my Doc and she did some routine blood tests. The results said I am now diabetic which is why I hadn't felt great.
I suppose this might have happened anyway, but I feel pretty sure I helped it along by giving up smoking and eating lots of sweets.
I wish I hadn't bothered now. At least I enjoyed smoking. What I don't enjoy is having to watch everything I eat and taking 3 tablets every day.
I just hope someone else learns from my mistake.