Milestones Milestones mark accumulations of smoke-free-days such as one week, 30 days, 180 days, 365 days, etc. Many have Rewards attached to them. Some Milestones have their own Quitticisms (like Tweener, for the 50-day Milestone).
We will have withdrawal symptoms at different times. It took years to harm our bodies. We have no right to think that in a few short weeks all will be fixed.