What are COVID-19 booster side effects?
After getting vaccinated for COVID-19, you might experience some temporary symptoms like those you might notice when you get a flu shot, such as a sore, swollen arm where you got the shot. You might run a fever and experience body aches, headaches and tiredness for a day or two. Chills, swollen lymph nodes can also occur.
These symptoms do not mean you are sick. They signal that your immune system is responding to the shots and building up protection against the coronavirus.