Have you posted in the headache forum?

I'm asking because a lot of posters there have vascular disorders which cause their head pains.
Here's the link: http://neurotalk.psychcentral.com/forum32.html

You could also try :
Chronic Pain: http://neurotalk.psychcentral.com/forum10.html
or
General Health Conditions : http://neurotalk.psychcentral.com/forum2.html

Try posting in each if you're still unsure, and hopefully some-one will be able to help you soon.