I don't usually add stuff here unless it relates to our life somehow, but this is an exception. My purpose in linking to this video is not to discourage people from getting the vaccine, but to show how strange the human body functions. Keep in mind that the odds of experiencing this type of reaction, if it is indeed an actual reaction to the vaccine, are extremely small.
I have checked to confirm the validity of this clip and everything available suggests it is not a hoax. If you find information that suggests otherwise please let me know. A sad story that we can only hope gets better with time.