The intense change of emotions that occurs when the sun sets. Often non-frightening things turn very scary when night approaches and you are laying in the bed. Symptoms include: imagining the broom in the corner is a serial killer coming to murder you, carrying around a baseball bat just to go to the toilet, and burying yourself beneath mountains of blankets so the horrors of the night do not get you.
Oh my word! When my phone vibrated on my dresser last night, I was so freaked that I bashed it in with my fist.
Wowzers, dude. You must have had a serious case of noctophobia.