I do experience auditory hallucinations. Have since I was a teenager. Had a few visual hallucinations as well, but more often just hearing things that aren't really there. Most often mine are at night, early morning, or at times when I am very stressed. Most commonly I will hear what I think is a radio playing outside my house, or down the hall, or murmurs of a male voice having a distant conversation or argument. Several times I have heard more sharp, louder noises, such as a scream or one of my kids crying, or a dog barking, or a crashing/breaking noise. Then when I would get up and run to check, they are all sound asleep and as I search for the sound, I realize that it must have been a hallucination again.
I brought it up with my therapist once, and she said it was probably a sleep disorder.

I dunno.
A couple of nights ago, my son was singing to himself late at night and I could sort of barely hear him and it really set me off on a loop trying to figure out if it was real or not, lol. He said I sat up in bed across the trailer and yelled something at him that didn't make and sense and so he apologized and stopped. I felt bad for yelling at him, but also freaking out and confused as heck because all my normal coping methods were not working!