I was on paroxetine a few years ago. I had no side effects starting it or being on it but did a stupid thing and decided to stop taking them without gradually lowering the dose. I got horrible neck jerks and weird sensations of 'electricity flashes' in my head where I'd feel like I was losing conciousness for a few seconds. I cut down to half a tablet each day then half a one every other day then I was ok coming off. I recently went back on anti-depressants but the dr said paroxetine is not recommended any more as the first port of call because of the withdrawal effects.