welcome mesok9unit
It is common place for the anniversary of your trauma, to trigger a reaction like insomnia. It's been 5 years for me, and I tend to have sleepness nights on the anniversary too. Never been a cop, but I understand the whole denial thing.... suppress it so you can function ie do your job, still earn a living, act "normal" "be strong" around your family/friends/coworkers.... stressful keeping up the act, huh? Been there. I understand, most of us do. Good luck and best wishes.
FightingLily