Hi,

I am having severe headache at the back of my head which starts from the back left side and then slowly spreads to the entire head. My jaws n face bones also start paining after some time. And the headache increases if I lie down or bend down. This continues until I take some painkiller. But since last couple of days even the painkillers are not of any help. Please suggest what could the reason be of such a headache and what should I do to cure it.