I recently had the symptoms of fatigue, drowsy, naeuseua, and all the things u feel with a hang over, aching bones, I had what I thought was tonsilitus and raised glands over and over again and kept Being prescribed antibiotics, it didn't go, my doctor decided to do a full blood check and it showed up that I had something but they didn't kno what, I was checkEd for thiroid and cancer and lyukemia etc and raised white blood cells were showing up I had further checks on them and my body wasn't healing to well , I had to hav regular blood tests and in the mean time it was very worrying for me and my family, over a period of still having antibiotics on and off , I had to rest alot and missed a good seven months of school, in the end they put it down to epstein barr, which is more commonly known as glandular fever, soon after the rest and tablets i slowly recovered, I have to take it easy or I do get bad throats again and it's something that never properly goes , so don't. Panic about raised white blood cells too much it could be something less serious :-)