During Tawaf-ul-Wada` I had a stomachache and diarrhea

A 1: If the case is as you mentioned, your Tawaf-ul-Wada` is invalid and you should offer a Fidyah (ransom), which is to slaughter a sheep meeting the same conditions for an Ud-hiyah (sacrificial animal offered by non-pilgrims), in Makkah and distribute the meat among the poor people. If you can not do this, you should fast for ten days. This is because when the Wudu' of a person performing Tawaf gets invalidated during Tawaf, he should perform Wudu' again and start the Tawaf from the beginning and not continue it.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.