can stress or traumatic events increase the chance of developing schizophrenia or psychosis? i noticed when im stressed or paranoid, i exhibit schizophrenic or psychosis like symptoms and im very confused. 

my symptoms include: paranoia, racing thoughts, delusions, unable to think or remember, sometimes visual or auditory hallucinations, and feeling like my reality is crumbling. 

can you be stressed but have some schizophrenic symptoms without having it?