Am having Neck-head pain in the right-back part of the head since January/2008 ,Help!?

I'am having pain in the Back-Right part of my head ,the pain extends from the top of my neck to the bottom of my skull
i can descripe it as a stabbing pain,it comes and goes very frequently ,it gets worse when i use my Right arm for writing,
i am having it for 1.5 year,the pain didnt get worse but it got more frequent,
i visited a neurologist & he gave me Anti-rhumatic pills,i sticked with the treatment for a week,the pain decreased but didnt go away
the PAIN is not triggerd by any physical-effort, i had a vision test and it was 20/20
the pain goes away temporarly when i lye down on my back
Sometimes i strech my neck,i hear a pop &  the pain goes away temporarly.
i have Not vomited so far,the pain is ONLY on my right part of head&neck since am having it.
Sometimes its stabbing & other-times its a kind of neck-stiffnes
So please Help!