About two weeks ago I had this very bad feeling in my throat it was totally dry and tight like swollen. It made me keep gagging and feel nauseated or vomit for the next week. I could barely eat or swallow. I was in the hospital for 2 days or so after but they couldnt find anything wrong, just a fever. They did a throat scope, blood test and x-ray but they found nothing serious. In the last week or so it got a little better, but every once in a while it still gets extremly dry, I can still feel particles of stuff in my throat and I keep on having to spit out saliva which builds up in my mouth. Any idea of what could be wrong?