Ay, mama, evening primrose can cause different reactions sa bawat tao, kaya kung nabigla ka or worried ka sa nangyari after just one dose, better check with your doctor right away para ma-assure ka talaga, especially if you're pregnant or breastfeeding, seryoso lang! A few of my mum friends din nag-try nito at may iba't ibang experiences, so best na i-confirm kung safe pa rin siya for you personally. Wag mag-alala, the doc can guide you better on whether to continue or stop.