Hearing Things?

i've been hearing things for most of my life, but i'm unsure if they count as hallucinations. i don't have specific voices that talk to me, so much as constantly hearing people call my name, unintelligible speaking from somewhere far away, doors opening and closing, alarms, footsteps, and music. they're often very quiet and get much worse when i'm stressed. i don't know if it matters, but during a particularly traumatic part of my life, i suffered from exploding head syndrome.