Not everyone who has a tetanus shot has pain after the tetanus shot.
But some people including myself do experience a reaction and experience the tetanus shot pain after they have the shot.
From my experience the tetanus shot pain only lasted for a couple days and a day after I had the tetanus shot the pain started going away and then 48 hours after the tetanus shot the pain fully went away.
Having pain after a tetanus shot is normal although not everybody has the pain.
Still a tetanus shot is very important because without it and you got tetanus you could die soon after getting infected.