Does anyone else?

I don't know if it could be ptsd, schizotypal personality disorder, or both, but for a while now, I've been really jumpy at noises like doors opening/closing, and I get really scared when there are loud noises, like yelling. It really doesn't help that my dad is so loud that I can hear him from down the street, and that my sister yells at our dogs. Is it stpd or ptsd? I don't know.