The military calls them Blast Concussions. Concussion for the blast force of an explosion are very common in the military due to road side bombs. Google "blast concussions." You will find plenty of information and government research supporting the damage done by blast concussions. Here are two good articles, http://www.washingtonpost.com/nation...GUU_story.html and http://dvbic.dcoe.mil/about-traumati...ary-concussion.

You might even print out an article to take to the doctors in case they try to minimize or doubt your symptoms.

Hope this helps.

My best to you.