Swallowing my saliva on it's own makes me feel nauseas. I have to carry sweets or flavored drinks with me everywhere or else ill begin to have stomach cramping as well as persistent nausea. I also am a smoker , although these symptoms worsen after i smoke, even if I dont smoke i will still have these symptoms, especially if I havent eaten in a couple of hours. Are there any tonics, exercises, vitaminsor anything that I can do or take to get rid of my symptoms?