I smoked my last cigarette 8 days ago. Mentally I am doing great. Physically I am suffering. Logic tells me that after feeding my body toxic chemicals for 17 years, it is going to take some time to start feeling better. I am suffering with heartburn, soreness of my chest and the taste of "menthol" in my mouth. Can anyone out there tell me if they have had similar side effects? And if so, how long do they last?