it depends how addicted you are to it. If you are popping pills throughout the day to keep a steady high and are doing it for an extended period of time, than the withdrawl can be miserable. Its a...
It depends on how long you have been taking it, but when this happened to me, it took around 48 hours. After the initial 48 hours, it was pure hell.
Yes Yes Yes
to pull back or to leave
No