Found this great article in the NOVA monthly newsletter. The similarities between the two illnesses (PTSD and TBI)is so remarkable that VA admits they often cannot discern between the two. Ruh-oh, Rorge. Pyramiding is forbidden so make sure your nexus letters are very clear about who’s who and what’s what.
Here’s the link to the article you’ll want to hold on to if you suffer either malady. Good cites to recognized studies. Since VA is mentioned and cited, that will provide more fodder to the nexus and bolster your case.