I've been on effexor 150 mg for over a year and a half. I started to ween myself off with the help of a new doctor (one that was willing to actually do so instead of up me every time I wanted off this medication) I slowly cut down my doses until I was doing 37.5mg every second day. I now am on day 4 of being clean of effexor and going through a weird withdrawal symptom. I can handle the mental fogginess, the fatigue - but the weird "vibrations" in the front and back of my body when I move my head to my left or right I cannot bare. I am taking a chinese herb for the nausea which is great. But if anyone can help me with these "vibrations" and tell me how long they will last that would be great. I guess I am looking for a light at the end of this horrible tunnel.