I was sick for 7 years and was finally diagnosed correctly 3 months ago with silent acid reflux. It's silent because you don't get heartburn. My symptoms were a chronic sore throat, low grade fever, unrelenting fatigue,pain in upper teeth, headache, and post nasal drip and tons of mucous production (your throats natural reaction to the acid that is pouring into it). The acid also came into my mouth and caused a thick white coating to form on my tongue (also a protective mechanism against the acid). This condition is much worse than heartburn because the acid goes all the way up your throat into your mouth. The worst part of all was that it caused sinus infections. I went to 10 specialists and spent tens of thousands of dollars before getting this diagnosis. It was missed by several chronic fatigue specialists. A top rated ENT (ear, nose and throat doctor) put a lighted scope through my nose and down my throat to make the diagnosis. He called it cobble-stoning, the appearance of the throat tissue after it is exposed to acid. I am writing because I believe that this is much more common than most doctors believe and it's possible that some of you may have this. If you suspect it, you might try a 10 day dose of prilosec (acid pump inhibitor---OTC). As long as you don't have a sinus infection, you will feel better within 24 hours if you suffer from this condition.