I have been having white patches, (which don t scrape off my mouth, I already I tried--carefully) breathing has been difficult, as if I am choking or my throat suddenly tightens up at times, red spots on the roof of my mouth, appear, and most recently, pain in the back of my neck, but no fever. Voice has been going on n off with hoarseness, feeling sleepy on n off, and appetite is low, burning sensation at times as if I swallowed a butane lighter or more. I saw the ER Dr here, and she has never seen anything like this. what do u think?