I have been quit for 8 days and of those 8 days my upper back and chest have hurt for 5 of them. I have been to the Dr. who first told me it was probably because i was chewing so much gum and swallowing air. So i stopped chewing gum (this was just regular gum not nicotine gum) and stopped useing the nicotine patch. Still have the back pain. Every day.
The good news is i don't want to smoke.
Has this happened to anyone else?