whats up fellas it's been a while, trying to shed some more stomach fat before summer, question is i have clen which i know is good but does not seem to work with me, i have taken eca stack and that works, gets me pretty wacked out but for some reason the clen just will not work, 2 other people take the same clen and they get all jittery on it, should i just start some more eca stacks 2 weeks on 2 weeks off or is there something else i could take for better results. Thanks