-I'm surprised your doctor is jumping right into a spinal tap so quick?-This sounds like sinus trouble to me-I too have the same symtoms-try some sudafed sinus over the counter for a few days-Or your gear could of had some bacteria in it and you are feeling ill because your body is trying to fight it-if this is the case be honest with your doctor and he will probably give you an antibiotic to fight the bacteria-try the sudafed
first-