concerned

I have a concern about the shape of my head. It seems to be unusual. My skull seems to protrude out where my temporals are. Can anyone tell me if this is normal or what may be causing this? From time to time, I would feel like there is alot of pressure inside my head, and then when I look at myself in the mirror, it seems as if my head got a little bigger. When I get this pressure, it would hurt if I starting thinking about anything, like when I read. I talked to a doctor about this and he requested for me to get an MRI but my insurance denied it. So I kinda don't know what to do. I head about mylittlecard.com or something that gives you discounts on things like that but i havent really check it out yet. But yeh, what do you guys think? I have a picture of my head here:

http://i26.photobucket.com/albums/c142/VuLe110/Picture93.jpg

http://i26.photobucket.com/albums/c142/VuLe110/Picture94.jpg

http://i26.photobucket.com/albums/c142/VuLe110/Picture92.jpg