Anyone else seem to have problems w/ this?? Every time i start a diet this seems to happen .. i mean its something I've been dealing w/ for quite a few years I've even had all kinds of tests to see why and the only thing they could find was I have a slight mitral valve prolapse, and that i had a very healthy heart .. so why every time i start a diet do i get them worse?? The Drs didnt even have an answer for me .. could i have like low iron or potassium?? Or could it be from the splenda?? i know its healthier for me to be dieting then to be overweight but i cant stand these!! DSO keeps telling me its all in my head .. but really its not i know what im feeling .. Thanks for any advice