When I stopped alcohol two months ago I started drinking a ton of coffee (about a pot a day). Which for me was not a good thing seeing as I have an anxiety disorder and the caffeine made it a million times worse. My hands were shaking like crazy and I was practically bouncing off the walls. I cut out the coffee completely two days ago and I'm feeling much better already. I do still have one can of Pepsi a day. I just can't seem to give up the caffeine totally yet.