I have seen plenty of people at my work that got this (Moderna), and at least one got quite sick on it. Others seemed to feel quite tired for a while after their torture shots. What I am waiting on is when the long term side effects are going to start hitting them. And they include extreme fatigue (worse even than what you get from sitting at a big boasting session all day), shortness of breath, heart problems, type 1 diabetes, other auto-immune issues, strokes, and blindness and deafness. I am far more worried about those problems than about the shorter term effects.
Instead, I got the Amazon "shot" in May 2020 (when the first of my bottles of quercetin arrived). This is, simply, I went on Amazon and ordered three big bottles of quercetin (and then, they were in short supply and therefore backordered). Then I started taking it when it arrived. Once that happened, I started gradually tapering my excessive sanitation procedures, cutting back on hand-washing and sanitizing my shopping carts every two minutes. This ramped up my exposure to the virus while the quercetin throttled it, effectively becoming my "vaccine".
Side effects? So far, nothing. And I am not expecting any long term side effects--that is, unless I end up choking on one of the capsules (a risk with any pill).