About Perinatal and Postpartum Anxiety Also available in: Español (Spanish) Approximately 10% of new mothers develop anxiety. The symptoms of anxiety during pregnancy or postpartum might include:Constant worryRacing thoughtsInability to sit stillDisturbances of sleep or appetiteFeeling that something bad is going to happenPhysical symptoms like dizziness, hot flashes, and nauseaRisk factors for perinatal anxiety and panic include:Personal or family history of anxietyPrevious perinatal depression or anxietyThyroid imbalanceContent provided by Postpartum Support International. Get Support