My nicotine delivery system for close to 40 years was snuff and chewing tobacco. Plug, pouch, Happy Days, Skoal then Copenhagen for the last 30 years I guess. It had me. Every single minute of my waking life revolved around my nicotine dependency and I was sick of it. I decided to quit cold turkey and this past March 15 I did. I about went crazy the first 2 weeks even having to visit a doctor because of severe anxiety and depression brought on by the shock of quitting. I got so nervous and shaky I felt like I was going to jump out of my skin. My vision was screwed up. I had severe stomach aches. Insomnia. Headaches. Irritability. Slurred speech. Very unpleasant. I'm seeing light at the end of the tunnel now and thankfully the light is no longer a freight train barreling toward me. If I can steer anyone away from ever picking up "the can" I will. It's a deadly snake that bites and doesn't let go. I can't go back...ever... because I might not get this chance again.