Known side effects from "receiving" the experimental still not approved "not-actually-a-vaccine" include Seizure, Shaking, Hearing issues, Eyesight issues, and Confusion-Memory issues. Recall all the videos of Joe Biden and the many many questions asked about his behavior, which even the president's physician refuses to answer. Yes, he was always an ass, but his level of incompetence increased shortly after the "vaccine" BS was pushed by the media. Perhaps his problems are a result of the "vaccine".