mRNA is far from experimental, all it does is carry the vaccine so your body doesn't destroy it,
Yes, the boosters will sometimes give you a temporary swelling of under arm nodes, but doesn't last more than a few days. After trying to look up "Peet-reviewed", I realized you meant peer-reviewed, and can only find that research on anti-vax sites. You really shouldn't spread your supposed research on this kind of site. Stop trying to scare people, as they are trying to get proper information.