I might have herpes for which i am to consult dermatologist next week. But i am having headache(top of eyebrows) since 6 months which has become severe since past 15 days and spread to top of head , back of head with throbbing. Also i have feverish feeljng since many months which has not been found out why. Nausea sometimes but no vomiting. Can this be meningtis or something else? Can meningitis continue for 6 months? cbc, lft, kft, mri head normal.