I have seen many men fasting and doing hard work. But never saw them fainting due to fast. So I don't think Veer can faint either.He is suppose to be doing the vrat. Remember?
Plus shaila says when you finally get something that you are longing for you can feel a bit dizzy. 😆
Plus when you get something you wanted you won't feel dizzy . You feel so happy that you cannot even imagine .
Veer being wounded or fainting would be fine in a different situation not this.
Somehow they have shot that scene . No point of thinking about it.