Pre-menstrual mood disorder? Yes, mood disruptions can cause psychosis.

I remember reading something about evening primrose oil and schizophrenia not mixing, I know you want to reject the diagnosis but, do look into that.

I have bipolar disorder and PMS has caused me to switch moods!

I know you're rejecting standard medications in favor of "natural" drugs. May I ask why? Especially birth control. That's what helped me the most!