my teacher in school is actually a nurse as well and she told me once pregnancy occurs every condition that you have prior to it will be flared up or likely exaggerated in its old symptomatic ways. i had mild eczema, but it didnt return with vengeance when ifound out i was pregnant(which was a surprise). and also i was severely anemic... iron deficiency... it was horrible i was in the hospital often but one day my levels had jumped from 14 to 28 to 39 in just a week's time when i had been struggling for years to get my levels past 14 at all with heavy medication doses! three days later, i found out i was pregnant and now im completely healed of my anemia and my hemoglobin is fantastic now according to my local nutritionist after some blood work was done again. its because the baby caused an increase in blood volume by 40-50%. my baby is a miracle surprise and they saved me haha! sorry for going off topic! but if your ibs symptoms get worse its probably from the morning sickness being added onto it.