I had sore arm muscles after both shots.
Muscle inflammation is an obvious risk.
That’s what is supposed to happen. The injection causes cells in the shoulder muscle to manufacture the spike protein, inviting an immune response in that location, which causes the inflammatory reaction that you experienced. But what was discovered to actually be occurring was the spike protein spreading beyond the shoulder through the bloodstream, and being detected throughout the body. That’s a problem, and we still don’t know all the possible ramifications of it.