Has anyone ever cut out coffee (and caffeine)? I tried it cold turkey today but I broke down and had a half a cup at midday. I have felt terrible all day. It gets better? It's worth it? Because I use cream and sugar and can't seem to be able to get used to it black. Also, I hate the "need" of it in the morning and I'm not sleeping well at night. I was hoping cutting coffee out of my diet would help the sleep problem too. Has anyone ever stopped drinking coffee and lived to tell about it?