Adverse reactions are not something to be taken lightly. A proper investigation is required to determine what the root cause is. One person making a youtube video would be extremely misleading. You have to look at what medications they're currently on, if they're fully healthy, etc, etc. information is neutral, but people can misapply what they think they know and project their ignorance in a way that will be amplified. I work in biotech (vaccines) and I see this kind of faulty thinking applied to vaccines quite often, so maybe I'm more sensitive than most.