Last Nov I had to stop the sim, 2 hours in, because I had food poisoning. “Sure you can’t finish?” “Hell, I’m not sure I can make it back to the Doubletree!!”
Wondered how rescheduling would work. (I too was early month). They had me call a scheduler the next day...they told me what was available, and I picked something that worked for me. That part was painless (two days sick in the hotel were not).
Call in sick if you’re sick.