Hi...just a thought but dehydration can cause a fever and you said one of the tests you had mentioned that you were a bit dehydrated. You said you drink plenty, but what do you drink? I used drink a lot of tea and hardly anything else. I became dehydrated as it has caffeine in it and it acted as a diuretic. I thought with all the tea and coke I drank in a day I could never become dehydrated...WRONG! Now I make sure I drink plenty of water. This is just a possibility, as your symptoms sounded so familiar to me.
I hope you get an answer soon.
fibro, menieres disease, RLS, anxiety disorder, disc compression, scoliosis, spinal stenosis TMJ Meds: Lexapro and valium