Well, I have had benign fasciculation syndrome for exactly one year now. No cause has been found. Guess what? I think it is from the zoloft. Too much serotonin or something and I am really really mad at the medical community for prescribing zoloft to me in the first place. I feel like I am stuck on it for life because the withdrawal is horrible if I try to stop taking it.... yet at the same time, I really think it is the cause of my advanced sleep phase disorder and fasciculations that i get all day long non-stop every day all over my body. Let me tell you all this timeline.... I have been on zoloft 50 mg and nothing else for a little over 10 years now. I don't really feel the need to be on it. Anyway, December 2012 I decide to stop taking it but went off it over a 2 week period which was not long enough to properly wean myself off it. I never ever had any side effects from zoloft either during that 10 year period. Anyway, got horrible withdrawal from abruptly stopping it like that and got really ill from it, lost 20 lbs, couldn't eat, nauseous, diarrhea, dizzyness, extreme panic. So after 4 weeks of dealing with that I decided to go back on it because I couldn't take it any longer. It took me a good 8 weeks to re-adjust myself to getting used to being back on it, and to tell you the truth, I have not felt mentally right since then, I always feel a little off or like a scared feeling, because flashbacks of that time period scare the crap out of me, that's how bad it was. Anyways, the fasciculations start March 2013... and I still have them and now it is March 2014. I have had brain MRI and EMG all normal. Normal labs including lupus, acetocholine, lymes, creatinine kinase, magnesium. I have been tested for everything under the sun and no cause has been found. Since nothing has been found I think it must be from the zoloft. So the other day when i picked up my script I read the insert and it said fasciculations are one of the side effects. Too much serotonin in the central nervous system. I am so mad they even prescribed this drug to me in the first place years ago. Anyone else?