I quit smoking November 2011 and by the following summer I'd got diabetes. I know I didn't have it Dec 2011 because my bloods were tested with my annual check up.
I must have been borderline and the extra sweets I ate as cigarette substitutes, whilst driving or working at the computer, must have just tipped me over.
On the positive side though, the money I save on cigs pays for the test strips which the GP only hands out whilst doing an Ebeneezer Scrooge impression.
I don't have 'cravings', none of that conflict, that all disappeared after three or four months. It took me a long time to work through all the associations though. Something in your brain would say, when I got off a train for example, time for a cigarette. It's not a craving, just an association, because you've done it so many times before. Those associations are many, but they are thankgoodness, easily broken. I know I'd enjoy a cigarette but fortunately it is no effort to say, 'best not do that'.
Now, all I have to do is repeat the whole thing for mars bars, mint imperials, iced and jam doughnuts, toast and marmelade etc etc etc.