I happily cannot say I went through what you are going through when I quit smoking. May I suggest going down to an 18mg. At 20 analogs a day you may be getting too much nicotine. 18 proves to me the smoothest and the least amount of jitters anxuosness etc.. This is only a suggestion, I have no idea if it will work.18 is perfect for me and I was a a 3 pack a day.