I get those types of headaches as well. I also have the awful "whooshing" sounds. I think it's all part of the post concussion. Have you had an MRI done? This will tell if you have leaks I believe.

Mark,
I never thought about the anxiety causing the focal headaches but it would make sense. Sometimes, even after 16 months I get the sharp pains. I will be more aware of my state when this happens.... With all the meds you would think my anxiety would just go away. lol