It'll be fine Carlota. Relax
I mean the worst that can happen is the doctor has a hangover and botches the surgery....or they use a dirty instrument or don't wash the table good enough and you get a staph infection that requires an entire leg and a labia and a half to be removed.
Other than that....not much to worry about.
My guts are bad enough I never have been able to take the pain pills. It would make the PT easier if you could, but I've proven a human can do it without them.
"Silence is Golden. Duct Tape is silver"