I have always majorly disliked the dark cause of what happened to me, but before my PTSD kicked in I could tolerate being in a dark place for short amounts of time, if I really had to-I used to take my young nephews to Laser Quest which is dark and I used to love driving at night.
Now i'm 100 times worse, I cry like a baby in the dark, embarrassed to say that I never turn a light off, I can't turn my front room light off even if I'm leaving the room and the hall light is on. I sleep with the lamp or light on and carry several light sources (torches, phones, flashing key ring) with me when out at night. For me darkness triggers flash backs and I disassociate and turn into an emotional mess. I feel stupid about it cause my brain tells me it's safe now and nothing bad will happen but I'm still terrified.