What happens when you smoke after you've quit smoking?
When you quit ingesting nicotine, the pleasure receptors in your brain that have been sensitized to it and release endorphins/dopamine begin to die off. The total process takes around a year. So, if you ingest nicotine, doesn't it make sense that you would be giving the ones that were dying off a "fillup" and/or sensitizing new ones that had never been exposed to nicotine?
Don't get stuck in the physical circle of slavery by overusing the nicotine aids. Once you are off of it and comfortable,
STAY OFF OF IT!
It's a prison and will never let you go until you let it go.