This is an "oh crap" moment if I ever saw one.
YES ! I was inside a Reverse-Diving-Bell of sorts, rectangular and smooth like the Obelisk from 2001. It was somehow protecting my naked bod from the cold of space and also providing oxygen. The concern was that it would abandon me, and, how the heck do I get back down from here ?!
Ha ha! I'd be concerned about that too. It would be important on my list. Right after "Where should I put my poop."
"In Space... no one can hear you poop." Great line for a Movie Poster ;~j