Now this is not that bad as other posts but it's been bothering me for the last week. Last week, right after eating breakfast, I got a severe stomach upset and vomiting, I thought it was over but the next day, when I went for breakfast, my heart rate jumped up, I got a sick feeling in my stomach and breathing became heavy, this has been happening for a week now, it subsides after noon but I need help, I am not eating enough for breakfast.