The lump in your throat, is caused by stress. Please don't worry, the symptoms will go away when you start to relax. Candida gets into the nervous system making us very anxious and at times jittery. I've been there about five years ago, so please let me reasure you that you are not suffering from anything sinister.
Please don't eat Cheerio's as they are made with sugar. Try organic puffed rice from the health store.
Wishing you well
Katherine McKelvey U.K.