Co-workers.
I can vaguely remember what that was like.
You are fortunate that they care enough about you to be concerned. Or at least amused. When my back went out at work in 2003, I laid on the floor unable to move, in plain view of a security camera, for an hour before I managed to drag myself to a phone.
If i had a pipe at the time, I could have just lit it and security would have been there in 6 seconds.