I had a similar experience. I've only ever taken Paxil once, for maybe a month or so. Going into it, the only side-effect I experienced was an inability to climax during sex—-yeah, I know, too much information, but people need to know what they're getting into. When I stopped taking it, I experienced the same electric shock sensations you're talking about. My eyes twitched terribly, and I bounced back and forth between wanting to kill myself and wanting to kill everyone else. That lasted for around two weeks.

After that experience, I decided it was better to just feel depressed.