ANSWER:

This has no impact on the Umrah 

The most authentic opinion is that you don’t require wudu to do tawaf and sa’ee

QUESTION: If someone is doing tawaf on wheelchair and is so sleepy during tawaf he suddenly, dozed off for few seconds and felt as if he had passed a wind, but he wasn’t sure he thought he had a dream for a second in which he passed wind when he dozed off briefly. He is still not sure either he passed it or not. Does his tawaf during Umrah valid?