I was recently diagnosed with Narcolepsy after experiencing sleep issues over the last 12 years.  12 years ago I was injured by a hand grenade (close Proximity) and am currently service connected %70 for mostly shrapnel wounds allover my body, nerve damage, and an additional %10 for PTSD.  I do not have a service connection for a TBI and did not know what TBI was at the time of checking out and filing a claim with the VA.  Over the last 12 years I have had issues with sleep and sought treatment