He'd been taking it for about 4 weeks, and stopped. I just got a text from him saying "No more caffeine and ephedrine. without if i've never felt worse. like its hard to move and i cant stop sleeping, i slept over 14 hours last night. i've had a fever too" I took it for longer, and in higher doses than he did, and i didnt feel any different when i stopped taking it. I'm thinking its a coincidence... anyone else have problems like that, or are they even possible?