How is your day going? I'm going to take a wild guess and say...it's not been the greatest day. Mood swings, irritability, "nic fit" cravings, headaches, and that hard-to-describe feeling of your brain being squeezed.
You’re smack dab in the middle of nicotine withdrawal. But the middle means you're the same distance from the beginning as you are from the end, so just keep pluggin forward and you'll be through the worst of it in no time!
Drink water. Exercise. Post about what you're going through. Get out of the house. Do something to get out of your head. Don't wallow in it!
The 2nd day without nicotine is the day to really embrace the idea of altering your perception and attitude. Instead of viewing these cravings as terrible and unbearable and unfair, you should be embracing them as a necessary evil that will fade into the rewards of breaking the addiction. We'll talk more about that below.
As you can see, this is a vicious cycle us smokers have been going through for many years. Instant gratification followed soon after by those same withdrawal/craving symptoms. It will never end until you break the cycle!