I've been taking speed daily for 18 months, initially started it for weight loss8) but became heavily dependent on it, anyway last week I decided to stop, I'm now 6 days off, first 3 days were hell but now feeling ok apart from really tired. My question is Im suffering from insomnia and my appetite is very suppressed, even more so than when I was taking speed. I was really expecting the opposite to happen, is this normal?