It is interesting that the AZ vaccine started having problems pretty much right away after they started using it. I've been hearing about that for a couple of weeks at least. And yet, the Moderna vaccine has been used for at least 6 months with a very low incidence of serious side effects. Most of those side effects have to do with allergic reaction to the shot. If there was anything like the incidence of serious side effects with Moderna that there has been with the AZ virus, it would become hard to hide it because of social media.
I personally think that if you don't want to get the vaccine, then you should not get it. It really is your choice, at least here in the U.S. I don't know what Canada is like for that...