Usually medications for post partum psychosis are given at least from 6 month or more , dose could be reduced once patient is stable otherwise it is seen that patients relapse ( symptoms come back)
Their are many factors to reoccurrence but yes it has seen that major life events (marriage, pregnancy, child birth) could be a stress to mind and body ( not in positive or negative terms) together with sleep disturbance could trigger theses episode
Next Steps
You should consultant psychiatrist
Health Tips
Please review the dosage of medication and get routine blood investigation regularly as these medication could alter your blood profiles
Watch on the weight gain