First time i went through thick cloud I was on my back watching everyone else jumping out the plane, when I arched I couldn't work out if I was on my belly or back so did back flip and tried again, still couldn't tell if still on my back or belly. When I got through the cloud I was on my belly. I asked an instructor why I didn't feel the wind / ice on my face, he believed I had some sensory overload, all my senses were switched to my eyes. He said you get used to it in time, he also said if I closed my eyes I maybe would have been able to feel the wind on my face, How wierd is the human brain or how Clever!!!!! Lee