Don't blindly believe everything you see and read on the internet.

Here is that same nurse explaining what happened to her and why she fainted.

https://www.youtube.com/watch?v=tOH7XLHl2mo

Actual title:

Nurse Collapses on Air after receiving Coronavirus Vaccine.

https://news.ycombinator.com/newsguidelines.html

",,, please use the original title, unless it is misleading or linkbait; don't editorialize."