Rather than focusing on the side effects of vaccination, one could focus on the recent CDC report[0] from which one can conclude that
*Natural immunity with or without vaccine provided robust protection against hospitalization in the age of delta.*
and therefore, if one was infected previously, they don't need to be vaccinated to boost their immune protection against the virus.
[0] - https://www.cdc.gov/mmwr/volumes/71/wr/mm7104e1.htm#contribA...