Fun fact: you still need to to PCR test even if you're vaccinated because vaccines "can't stop the virus from spreading".
After the vaccine you felt very bad. At least very not good. Your arms aching, your head hurting, et cetera et cetera. You checked the news on your phone. Some people got leukemia after this. Some people got pneumonia after this. You were told these are rare cases. Poor people, you thought.
You are not allowed to do PCR test after vaccine though, as it will somehow "affect the result".