i knew a guy got hit in the noggin by a falling box off a shelf at kmart-lost his medical for two years, i think-had to sue both the feds and kmart-he finally got it back after about a gozillion different medical tests and brain scans, etc-but he did get it back. i dont know if he was able to get full disability or partial or what while he was waiting. i know this doesnt help much, but he *did* eventually get it back.