I'm interested in quitting smoking but have a few questions for those of you that have before me. I know that nicotine has an effect on the digestive system and can sometimes act as a bowel movement stimulant. Has anyone who has quit experienced any negative BP side effects? Such as constipation, longer bowel motility time or anything at would lead to one of the many "worst case scenarios" we all fear? I know smoking is unhealthy and quitting is necessary but I would just like a warning if any of you have experienced any pitfalls of the process that you would like to share.