I agree; what were you on, how much, and what was the duration? I am sure we have talked about it previously, but I just want to be sure. In my experience, anytime I was tapering off of any medication, there was withdrawal. Never taper by yourself; always do it with consultation of your prescribing doctor and continue to voice your concerns to him/her. My mantra is, the slower the better!
What medication are you on? Are you possibly tapering off too quickly? Are you doing it under a doctor's supervision?