Speaking from experience, I just ceased venlafaxine 2 weeks ago. Went from 300mg to zero. BIG MISTAKE. Don't be tempted. As we speak, I am an in-patient as I crashed so badly.
The brain-zapping lasted about a week for me. Now that the physical withdrawal symptoms have ceased, I am trying to deal with the psychological ones.
I felt it was the right decision for me. It obviously wasn't, as now my family are suffering with me not being there, and I am also like a grenade just waiting for someone to say the wrong thing to me so I can fly into a rage.
Please don't do. If you aren't happy with Paxil, try something else. I have just been started on Lexapro, but unfortunately I have to try and bear the next 8 days or so until the therapeutic level is reached in the bloodstream again...all because I stopped cold turkey.
Good luck, and hope you can stick it out.