For me, this is the injection of anesthesia at my latest consultation at the dentist, it was so painful that i screamed to him. Anesthesia is rarely a time of pleasure, but damn, it has never been so painful.
Burst ovarian cyst.
It’s the only time I’ve literally felt like vomiting from pain. I went to the ER, waited for hours and went through a bunch of tests for them to tell me they couldn’t really do anything and that it would feel better over the next few days. $12k bill came in the mail a few weeks later.