You will be feeling sleepy and have a lack of energy due to your body adjusting to the lack of nicotine in your system. I experienced the same problem when I tried to go cold turkey. I tried an array of different stop smoking products and none seemed to work for me...I even tried that Alan Carr book and I am not a reader. So far I am trying an electronic cigarette that my friend has leant me that he used to quit with a medium nicotine strength e liquid . So far so good Will report back in a month or two on how I am doing.View Thread