Once again, German has an unexpectedly apt word for what you have just experienced

Blutschlauchüberraschung (n.) - A feeling of wonder, as that elicited when emptying your pockets upon arriving home after an evening at work only to unexpectedly find a tube of blood, unlabelled, whose origin you do not recall.

German is an incredibly versatile language

Manfraurektumverwirrung (n.) - The disorientation felt by the medical examiner during a rectal exam when they realize that the man's rectum feels much more like a woman's rectum because the man has had a total prostatectomy so there is no anterior firmness, so for a brief moment the doctor is concerned that they have made a terrible mistake and is fact examining the wrong patient.

There's a word in German for that too

Stauchenhefeextrakttraummüdigkeit (n.) - The overwhelming exhaustion experienced after you see a TV news bulletin saying your sister-in-law died from eating expired Vegemite only hours after winning a Commonwealth Games gold medal in freestyle swimming, and you call your brother in great distress only to be informed that it is all an elaborate hoax masterminded by Roy Slaven and HG Nelson, and you can barely cope with the roller-coaster ride of emotion when you suddenly wake up and it was all a dream and you're already late for work.

There's a word for it in German

Zehennagelschnurrbartangst (n.) - The experience of, having hours earlier extracted an infected ingrown toenail from a patient, smelling the pus again, and worrying that perhaps some of it has squirted up onto your moustache without your knowledge.