Kicks in after a week, does it not? So it would be in your system. You had to have been taken it for a reason. Maybe it is the problem you were taken it for that is causing you some problems all over again. Just wait and see what those who know more have to say on the matter.
Yes, definitely...I only took it for two weeks and I had the same thing. But you can't stop cold turkey, you have to wean off. You should call you doctor so they can help you wean off the medication so you don't have such bad withdrawal symptoms.