Upvoted and followed. Quit for a couple months last year and I had physical withdrawal symptoms. I'm not saying everyone will, just that I used to laugh when I heard people tell me they existed; now, it's not so funny.
First five days I couldn't eat anything, had maybe half a meal during those five days; lots of vomiting the first day, and diarrhea all five days. Once I could eat, though, everything tasted much better, and I started having vivid dreams, and being more social.
Am back to smoking again; I miss the vivid dreams, and I think I'll take a break every year. Perhaps one day, stop for a longer period. One step at a time.