Exactly. People replying to you are acting like a smoker will literally explode if they don't smoke for a few months. Some of these comments are truly bizzare! We're talking about cigarettes here.
Just like a nonsmoker, smokers are just fine being forced to go without cigarettes while underway. My husband was both a smoker and a submariner at the same time for many years. He couldn't stand vaping or using dip so he was just was forced to go without nicotine for the duration of the underway. Of course he (and the other smokers) were really grumpy about it, but that's it.
I also have smoker relatives who were somewhat frequently hospitalized. You simply can't smoke in a hospital, tough cookies if you want a cigarette. You simply just deal with going without - you can be prescribed nicotine patches is all, which aren't helpful to my family members.
We are talking about people getting annoyed they can't smoke.