You have to ask yourself if this could be causing some of the emotional, mental and/or physical problems. As for me, I think, yes, the stuff is dangerous. I had used it for over 3 yrs, and developed fibromyalgia, extreme fatigue and pain. It was slow, and not like some of the sudden symptoms listed here, but nevertheless, debilitating. Additionally, I had to look closely at my overall poor diet, as well as the Splenda, which, by the way, did nothing whatever to keep weight down.
http://www.xylitolnow.com/splenda.html