Does chiari malformation cause hallucinations?

I have chiari malformation and it seams that all the symptoms come and go like most have but still come back after a few days. But I've been seeing shadows at the corner of my eyes and keep seeing these shapes (shadow like) flying past my face. I also keep hearing what sounds like people breathing but it seams to be coming from my kitchen. I also keep hearing loud bangs in the kitchen every once in a while that no one else can hear. I looked up if this is a symptom of what I have. It said that chiari malformation can cause psychotic episodes but not exactly saying anything about hallucinations. Does anyone know if it's a symptom??