Assalaamu alaykum. During the hot months, the water from the shower is so hot that the small bathroom that I use becomes humid quickly. When doing ghusl (ritual bath), I sometimes feel dizzy when this happens. Just recently, in the middle of my ghusl (which I did standing), I was dizzy and was using the wall for support when I lifted one of my feet to clean between the toes. I felt a wave of dizziness and would have fallen over so I was forced to lower my foot so that I would not fall. Does this affect the validity of my ghusl? I did not faint, but I was just dizzy. I found no answer here when I looked up dizziness during ghusl.

All perfect praise be to Allaah, The Lord of the worlds. I testify that there is none worthy of worship except Allaah and that Muhammad is His slave and Messenger. 

Performing ghusl in the circumstances that you mentioned is valid, and dizziness does not affect its validity.

Allaah knows best.